Poisson suppose you have 5 cakes made ready to sell. what is the probability that you will sell out?

Answers

Answer 1
From question given, the selling of the cake is assumed to be a Poisson process.

Assume further that the mean number of cakes sold per day is lambda.

Let k=5 = number of cakes sold during the day, then the Poisson pmf (probability mass distribution) is given by
P(k)=lambda^k*e^(-lambda)/k!
or
P(5)=lambda^5*e^(-lambda)/5!
=lambda^5*e^(-lambda)/120

If the average number of cakes sold is 4 per day, then
P(5)=4^5*e^(-4)/120
=0.156 is the probability of selling exactly 5 cakes.

The probability of selling 5 cakes or more (i.e. the sixth and subsequent customers will be told to come back the next day) is then
P(k>=5)=1-(P(k=0)+P(k=1)+P(k=2)+P(k=3)+P(k=4)
=1-(0.018316+0.073263+0.146525+0.195367+0.195367)
=0.371163
(for  mean number of cakes sold per day = 4 )


Related Questions

The Henderson family and the Tran family each used their sprinklers last summer. The Henderson family's sprinkler was used for 15 hours. The Tran family's sprinkler was used for 40 hours. There was a combined total output of 1800L of water. What was the water output rate for each sprinkler if the sum of the two rates was 70L per hour?
Henderson family’s sprinkler: __ L per hour
Tran family’s sprinkler: __ L per hour



Answers

You have to create a system of equations in order to solve this, one based on total output and one based on output of each family's sprinkler.  The first equation is based on the total output according to how many hours each sprinkler ran.  Let's use H for the Henderson's and T for the Tran's. The equation for the total output is:
15H + 40T = 1800
That means that the Henderson's ran their sprinkler for 15 hours using H amount of water, and the Tran's ran their sprinkler for 40 hours using T amount of water, and that the total amount between the 2 families was 1800.
The next equation is based on each individual family's use of water per hour.
H + T = 70
That means that the Henderson's and the Trans together used 70 L per hour.
Solve the second equation for either variable (I picked H):
H = 70 - T
Now sub that value in for H in the second equation:
15(70 - T) + 40T = 1800
Now we will distribute the 15 into the parenthesis. The reason for that substitution is because we have 2 unknowns originally, an unknown H and an unknown T, and we can't solve an equation with 2 unknowns. The substitution gave us the equation in terms of T only.
1050 - 15T + 40T = 1800
1050 + 25T = 1800
25T = 750
T = 30
Now that we have a value for T, sub it in to the simple equation H + T = 70 to get H + 30 = 70, so H = 40

-5g-3/h-3 + 7g+9/h-3 find the sum

Answers

-5g - 3/h-3 + 7g +9/h-3 = -5g + 7g -3/h-3 + 9/h-3 = 2g + (9 - 3)/(h-3) = 
= 2g + 6/(h-3) if we want it as one fraction it would be:

2g + 6/(h-3) = [2g(h-3) + 6]/(h-3) = [tex] \frac{2gh - 6gh + 6}{h-3} [/tex]

FInd the approximations to at least two decimal places for the coordinates of Point Z in the figure below. The angle theta or Q is -80 degrees and the radius is 11.

Z = ?

Also if you can explain to me, that would be great.

Answers

check the picture below.

thus the rectangular coordinates are [ 11cos(-80°), 11sin(-80°) ].

make sure your calculator is in Degree mode.
Final answer:

Point Z's polar coordinates can be found by using the formulas x = r*cos(θ) and y = r*sin(θ), converting the angle from degrees to radians first. Use r = 11 and θ = -80 degrees.

Explanation:

This question deals with the concept of polar coordinates, coordinates given by a distance from the origin (radius) and an angle from the positive x-axis (-80 degrees in this case). Point Z's coordinates can be found using the formulas: x = r*cos(θ) and y = r*sin(θ). Here r (the radius) is 11  and θ is -80 degrees, but remember we need to convert this angle to radians because the trigonometric functions in most calculators use radians. That can be done using the formula: Radians = Degrees * (π / 180). Hence calculate x and y to find Point Z.

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solve the equation 14x+7y=24 for x

Answers

You want to isolate the variable on one side of the equation so that you can see what it's value is with respect to the other terms

The tree in Carlos backyard is 5 meters high. How high is it in centimeters?

Answers

Set up your equation to cancel out units that you do not need for your final answer.

5m(100cm/m)=500cm

Final answer:

The tree in Carlos' backyard is 5 meters high, which is equivalent to 500 centimeters because there are 100 centimeters in a meter. Multiplying 5 meters by 100 gives us the height in centimeters.

Explanation:

To convert the height of the tree in Carlos' backyard from meters to centimeters, we need to know the conversion factor between these two units of measurement. There are 100 centimeters in a meter. Therefore, if the tree is 5 meters high, to find its height in centimeters, we multiply 5 meters by 100.

5 meters × 100 centimeters/meter = 500 centimeters

So, the tree is 500 centimeters tall when converted from meters. This is similar to the example given where Corey measures a distance of 8 meters between two trees and wants to convert that measurement to centimeters. In this concept, we are provided insight into converting with metric units of measurements which is crucial for accurately understanding dimensions in different units.

a projectile is launched straight up from ground level with an initial velocity of 320 ft/sec when will it's height above ground be
1538 feet

Answers

Given: at time = 0, v0=+320 ft/s, [ assumed a=-g=-32.2 on earth ]

use kinematic equation for vertical projectiles,
Height,
H(t) = 1538 = v0(t)+(1/2)at^2=320t+(1/2)(32.2)t^2

Solve for t using the quadratic formula,
with A=16.1, B=320, C=-1538:
16.1t^2+320t-1538=0
t=8.14 or t=11.74

This means that at t=8.14, the projectile reaches 1538 feet (on its way up), and at t=11.74, the projectile falls back down and reaches also 1538 feet.


Final answer:

To calculate when the height of the projectile will be 1538 feet, use the kinematic equation and solve the quadratic equation for time.

Explanation:

To calculate when the height of the projectile will be 1538 feet, we can use the kinematic equation for free-falling objects. The equation is: h = [tex]h0 + v0*t - 16*t^2,[/tex] where h is the height above ground, h0 is the initial height (0 in this case), v0 is the initial velocity (320 ft/sec in this case), and t is the time.

Substituting the given values into the equation, we have: 1538 = 0 + 320*t - 16*t^2. Rearranging this equation, we get: [tex]16*t^2[/tex]- 320*t + 1538 = 0.

Now we can solve this quadratic equation for t by using the quadratic formula: t = (-b ± sqrt([tex]b^2[/tex] - 4ac)) / (2a), where a = 16, b = -320, and c = 1538. Plugging in these values, we can calculate the values of t.

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Practice determining key aspects of quadratic functions given in factored form. Which point is an x-intercept of the quadratic function f(x) = (x – 4)(x + 2)? (–4, 0) (–2, 0) (0, 2) (4, –2)

Answers

An x intercept occurs whenever y=0.

y=(x-4)(x+2)

So for y=0, x=-2 or 4, so the x-intercepts are:

(-2, 0) and (4, 0)

Only (-2, 0) is within your answer choices.
(-2,0) hope this helps

Help me find solutions to this equation and write the answers in radians in terms of pi . Thanks!

Answers

okay so just use it as an equation. 
if 2sin0 + 3^(1/2) = 0
2 sin0 = - 3^(1/2)
then sin0 = (-3^ (1/2))/2 
do sin^-1(-[tex] \frac{-\sqrt{3}}{2} [/tex]) 
= -1/3pi 
we want it between 0 < x < 2pi
so add 2pi (equivalent to 360degrees) 
= 5/3pi 
and to find the second value, (2pi - 5/3pi) + pi = 4/3pi
answers are 5/3pi and 4/3pi

if p is a polynomial show that lim x→ap(x)=p(a

Answers

Let p(x) be a polynomial, and suppose that a is any real number. Prove that

lim x→a p(x) = p(a) .

 

Solution. Notice that

 

2(−1)4 − 3(−1)3 − 4(−1)2 − (−1) − 1 = 1 .

 

So x − (−1) must divide 2x^4 − 3x^3 − 4x^2 − x − 2. Do polynomial long division to get 2x^4 − 3x^3 − 4x^2 – x – 2 / (x − (−1)) = 2x^3 − 5x^2 + x – 2.

 

Let ε > 0. Set δ = min{ ε/40 , 1}. Let x be a real number such that 0 < |x−(−1)| < δ. Then |x + 1| < ε/40 . Also, |x + 1| < 1, so −2 < x < 0. In particular |x| < 2. So

 

|2x^3 − 5x^2 + x − 2| ≤ |2x^3 | + | − 5x^2 | + |x| + | − 2|

= 2|x|^3 + 5|x|^2 + |x| + 2

< 2(2)^3 + 5(2)^2 + (2) + 2

= 40

 

Thus, |2x^4 − 3x^3 − 4x^2 − x − 2| = |x + 1| · |2x^3 − 5x^2 + x − 2| < ε/40 · 40 = ε.

The Sugar Sweet Company is going to transport its sugar to market. It will cost $6500 to rent trucks, and it will cost an additional $250 for each ton of sugar transported. Let C represent the total cost (in dollars), and let S represent the amount of sugar (in tons) transported. Write an equation relating C to S . Then use this equation to find the total cost to transport 19 tons of sugar.

Answers

Answer:  Equation relating C to S   : [tex]C=6500+250S[/tex]

The total cost to transport 19 tons of sugar is $11, 250.

Step-by-step explanation:

Given : It will cost $6500 to rent trucks, and it will cost an additional $250 for each ton of sugar transported.

Total cost =  $6500 + $250 x (amount of sugar transported ( in tons))

Let C represent the total cost (in dollars), and let S represent the amount of sugar (in tons) transported.

Then, the equation relating C to S  would be : [tex]C=6500+250S[/tex]

When S= 19 , we get

[tex]C=6500+250(19)=6500+4750= 11250[/tex]

Hence, the total cost to transport 19 tons of sugar would be $11, 250.

An equation that relates Cost to the amount of sugar S

C = 6500 + 250S

The total cost is $1120

The total cost of transporting 19 tons of sugar at 250 each

C = total cost

C = 6500 + 250(19)

Total cost = 6500 + 4750

= 11250

Therefore the total cost of transporting the 19 tons of sugar is $11250

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You inherit one hundred thousand dollars. You invest it all in three accounts for one year. The first account pays 4% compounded annually, the second account pays 3% compounded annually, and the third account pays 2% compounded annually. After one year, you earn $3,650 in interest. If you invest five times the money in the account that pays 4% compared to 3%, how much did you invest in the 4% account?

Answers

Let x = amount invested in the 1st account
      y = amount invested in the 2nd account
      z =  amount invested in the 3rd account

Because the total investment is $100,000, therefore
x + y + z = 100,000             (1)
Interest earned in one year from the accounts is $3,650, therefore
0.04x + 0.03y + 0.02z = 3,650
or
4x + 3y + 2z = 365,000      (2)

Because x = 5y, therefore obtain these 2 equations:
5y +y +z = 100,000
or
6y + z = 100,000          (3)
4*(5y) +3y + 2z = 365,000
or
23y + 2z = 365,000      (4)

Substitute z=1000,000 - 6y from (3) into (4).
23y + 2(100,000 - 6y) = 365,000
23y + 200,000 - 12y = 365,000
11y = 165,000
  y = $15,000
Therefore
  x = 5y = $75,000
  z = 100,000 - 6y = $10,000

Answer:
The amounts invested are
1st account: $75,000
2nd account: $15,000
3rd account: $10,000

Find a polynomial f(x) of degree 3 that has the following zeros. 6,2,-7,0      leave your answer in factored form


Answers

The polynomial will be found as follows;
given that the solution is x=6,x=2 and x=-7, it implies that roots are :
(x-6), (x-2) and (x+7)
Therefore the polynomial will be:
y=(x-6)(x-2)(x+7)
y=x^3-x^2-44x+84

water weighs about 8.34 lb per gallon about how many ounces per gallon is the weight of the water

Answers

128 I believe. if I wrong tell me and ill recalculate 

Water weighing 8.34 lb per gallon is equivalent to about 133.44 ounces per gallon.

The question at hand is how to convert the weight of water from pounds per gallon to ounces per gallon. Given that we know water weighs about 8.34 lb per gallon, we can use the conversion factor of 16 ounces in a pound to perform this calculation. Here's how you can do it:

Find the unit equivalence which is that 1 pound is equal to 16 ounces.Then, multiply the weight of the water in pounds by the number of ounces in a pound.Perform the multiplication: 8.34 lb * 16 oz/lb = 133.44 oz

Therefore, water weighs approximately 133.44 ounces per gallon.

Manuel rented a truck for one day. There was a base fee of $14.95, and there was an additional charge of 87 cents for each mile driven. Manuel had to pay $248.98 when he returned the truck. For how many miles did he drive the truck?

Answers

Final answer:

After calculations, it is determined that Manuel drove approximately 269 miles.

Explanation:

Manuel rented a truck which had a base fee of $14.95 and an additional charge of 87 cents per mile. To find the number of miles driven, we need to subtract the base fee from the total amount paid and then divide by the cost per mile.

First, subtract the base fee from the total cost:

Total amount paid = $248.98

Base fee = $14.95

Amount paid for miles = $248.98 - $14.95 = $234.03

Next, divide the amount paid for miles by the cost per mile:

Cost per mile = 87 cents = $0.87

Number of miles driven = $234.03 / $0.87 = 269 miles (approximately)

Therefore, Manuel drove approximately 269 miles with the rented truck.

On two investments totaling $10,500, Brian lost 6% on one and earned 8% on the other. If his net annual receipts were $497, how much was each investment?

Answers

Let
x = the amount invested on the winner, then
10500-x = amount invested on the losing investment.

We know that the net profit is $497, so
0.08x - 0.06(10500-x) = 497
Solve for x:
0.14x = 497+630=1127
x=1127/0.14=8050

Therefore Brian invested $8050 on the investment that earned 8% and $2450 on the one that lost 6%.

What's (8 + 3i)(3 + 5i).

Answers

Hello there!

(8 + 3i)(3 + 5i)

We must distribute each number/variable to the others in the opposite parenthesis.

8(3 + 5i) = 24 + 40i
3i(3 + 5i) = 9i + 15[tex] i^{2} [/tex]

Combine like-terms.
40i + 9i = 49i.

Now, put your simplified answer in Standard Form;
15[tex] i^{2} [/tex] + 49i + 24

This is your answer.

I hope this helps!

Find a vector parametric equation for the parabola y=x2 from the origin to the point (3,9) using t as a parameter.

Answers

Final answer:

The parametric vector equations for the parabola y=x² from the origin to the point (3,9) is x = t and y = t² for the parameter range 0 <= t <= 3.

Explanation:

The required parametric vector equation for the parabola y=x² from the origin to the point (3,9) is given by the equations x = t and y = t². Here, t is the parameter. At t=3, these equations give us the coordinates x=3 and y=9, which corresponds to the point (3,9). Thus, these equations accurately represent the parabola y=x² from the origin to the point (3,9) for the parameter range 0 <= t <= 3.

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Final answer:

In the parametric form, the path of a point on the parabola y=x² from the origin to point (3,9) is represented by a vector (t, t²) with t ranging from 0 to 3.

Explanation:

To find a vector parametric equation for the parabola y=x² from the origin to the point (3,9), we first need to understand that the parabola y = x² is not a vector in itself.

But, we can describe its trajectory through a parametric form using t as a parameter. For a given t, the parabola is represented by a vector (x(t), y(t)), where x(t) and y(t) are functions of t. For the specific parabola y = x², we can define the functions as x(t) = t and y(t) = t².

This means the vector at time t is given by (t, t²). From the origin (0,0) to the point (3,9), we now have a parameter t ranging from 0 to 3.

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Eyjafjallajökull is a Volcano in Ice land. During a recent eruption, the volcano, spewed out copious amounts of ash. One small was ejected from the volcano with an initial velocity of 368ft/sec. The height H, in feet, of our ash projectile is given by the equation H= -16t +368t
1. When does the ash projectile reach its maximum height?
2. What is its maximum height?
3. When does the ash projectile return to the ground?

Answers

1. The maximum height is at H` ( t ) = 0
H` ( t ) = ( -16 t² + 368 t )` = - 32 t + 368
- 35 t + 368 = 0
35 t = 368
t = 368 : 32
t = 11.5 sec.
2.  H max = - 16 · 11.5² + 368 · 11.5 = - 2,116 + 4.232
H max = 2,116 ft
3. It returns to the ground after:
t = 2 · 11.5 = 23 seconds. 

a jar contains nickels and pennies. there are 56 coins in the jar in all. the total value of the coins is 1.52. how many pennies are in the jar

Answers

1 penny is just 1c
one nickel is 5 pennies or 5c

alrite...

p = amount of pennies in the jar
n = amount of nickels in the jar

we know there are 56 coins in the jar, thus whatever "p" and "n" are,

p + n = 56

we also know, the total value of all pennies and nickels is one buck and 52 cents, or 1.52.. that's 152 pennies.

now, we know there are 5 pennies in one nickel, so in "n" nickels, there are 5*n pennies, or 5n, thus

p + 5n = 152

[tex]\bf \begin{cases} p+n=56\implies \boxed{n}=56-p\\ p+5n=152\\ ----------\\ p+5\left( \boxed{56-p} \right)=152 \end{cases}[/tex]

solve for "p", to see how many penny coins are there.

what about the nickels? well, n = 56 - p.

After solving the equations, it is found that there are 32 pennies in the jar.

To solve the problem of determining the number of pennies in the jar, first we establish two variables: let's denote P for the number of pennies and N for the number of nickels.

According to the problem, there are 56 coins in total, which gives us the equation P + N = 56. Also, we know that the total value of the coins is $1.52, and because each penny is worth 1 cent and each nickel is worth 5 cents, we have another equation, which is P + 5N = 152 (since there are 100 cents in a dollar).

Now we have a system of two equations to work with:

P + N = 56

P + 5N = 152

To find P, we can subtract the first equation from the second equation to eliminate P and solve for N:
0P + 4N = 96

N = 96 / 4

N = 24

Now that we know there are 24 nickels, we can find the number of pennies by substituting N back into the first equation:

P + 24 = 56

P = 56 - 24

P = 32

Therefore, there are 32 pennies in the jar.

What is the solution to the equation 5x-7= 3x+5 ? x = 1 x = 6 x = 12 x = 24

Answers

We can solve any equation by distributing and combining like terms if needed.
After that is done, we use the addition principle of equality and multiplication or division of equality.

The equation we have to solve for above does not need to be distributed and there is no like terms to combine on each side.

Using the addition principle of equality, we can add 7 to each side of the equation to simplify it further.

5x - 7 + 7 = 3x + 5 + 7
5x = 3x + 12

If we also use the addition principle of equality to add -3x to each side of the equation then the 3x on the right-hand side we disappear!

5x + (-3x) = 3x + (-3x) + 12
2x = 12

Now we can use the multiplication or division principle of equality on the equation.

Divide both sides by 2.

2x / 2 = 12 / 2
x = 6

So, x is equal to 6.

The value of the solution of expression is, x = 6

We have to give that,

An expression to simplify,

5x - 7 = 3x + 5

Now, Simplify the expression by combining like terms as,

5x - 7 = 3x + 5

Subtract 3x on both sides,

5x - 3x - 7 = 3x + 5 - 3x

2x - 7 = 5

Add 7 on both sides,

2x - 7 + 7 = 5 + 7

2x = 12

Divide 2 into both sides,

x = 12/2

x = 6

Therefore, the solution is, x = 6

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the sum of three numbers is 123. the second number is 9 less than two times the first number. the third number is 6 more than three times the first number. find the three number

Answers

Let the first number be x. The second number is 2x−9, and the third number is 3x+6.
x + 2x−9 + 3x+6 = 123
Collect like terms:
6x − 3 = 123
Solve:
6x = 126
x = 21
Plug the x-value back in:
(2 x 21) − 9 = 33
(3 x 21) + 6 = 69

The three numbers are 21, 33, and 69.

which inequality can be uses to determine

Answers

#2 is the correct answer

 5h would be the amount he earned helping his brother

+ 26 is how much he has

 so those 2 amounts need to equal or be greater than 48

A domino consists of two congruent squares placed side by side. the perimeter of the domino is 60 units. what is the area of the domino, in square units?

Answers

Suppose that the Domino's short side measures l units. Then it's long side measures 2l  units, and the Domino's total perimeter is 6l=60. Thus l =10 and the Domino's area is 10 x 20=200 square units.

Answer:

200

Step-by-step explanation:

So say the dominoes' short side is x. Then the long side is 2x, so altogether there is 6x. So 6x=60, so x=10. So the area is 10*(10*2), which is 10*20 which is 200.

EASY 5 POINTS!!! Which point shows the midpoint of segment JKJK?

Answers

total length of the line is:

 J = -10

K = 8

for a total of 18 units long

 midpoint would be 18/2 =9

-10+9 = -1

 so need the point that is located at negative 1, which is point N

 so N is the midpoint

POINT N is the answer

Find the indicated probabilities using the geometric​ distribution, the Poisson​ distribution, or the binomial distribution. Then determine if the events are unusual. If​ convenient, use the appropriate probability table or technology to find the probabilities.

A newspaper finds that the mean number of typographical errors per page is six. Find the probability that​ (a) exactly four typographical errors are found on a​ page, (b) at most four typographical errors are found on a​ page, and​ (c) more than four typographical errors are found on a page.

Answers

In this case, the Poisson distribution is the best one to use. The formula for Poisson distribution is given as:

P[x] = e^-m * m^x / x! 

Where,

m = mean number of typographical errors = 6

x = sample value

A. The probability of exactly 4 errors are found on a page is:

P[4] = e^(-6) * 6^4/4!

P[4] = 0.1339


B. The probability that at most 4 errors will be the summation of x = 0 to 4:

P[0] = e^(-6) * 6^0/0! = 2.479 E -3

P[1] = e^(-6) * 6^1/1! = 0.01487

P[2] = e^(-6) * 6^2/2! = 0.04462

P[3] = e^(-6) * 6^3/3! = 0.08924

 

Therefore summing up all including the P[4] in A gives:

P[at most 4] = 0.2851

 

C. The probability that more than 4 would be the complement of answer in B.

P[more than 4] = 1 - P[at most 4]

P[more than 4] = 1 - 0.2851

P[more than 4] = 0.7149

which is greater 2 or -13?

Answers

2, you can already tell -13 is less because it's a negative, and 2 is a positive.
2 is greater than -13.

If a number is negative, that means it's lower than 0.

HELP??? Which expression is NOT equal to the volume of the prism?

Answers

Hey there!

So remember that the volume of a prism can be determined through this formula...   l * w * h 

Now if we apply that rule with this prism.... the volume will be found as 36 cubic centimeters...

Next let's check all the choices to see if one of the answers does not sum up to or multiply to 36 cubic centimeters...

After evaluation the answer that is NOT the volume of the prism is choice C or 6 + 3 + 2


I hope this helps! ^__^
6 + 3 + 2 is not equal to the volume of the prism because the formula to find volume is L×B×H. this one is adding it all up therefore its incorrect

Cory predicts it will take him 64 minutes to travel to Baltimore from Washington D.C. If the trip actually took 74 minutes, what was Cory's percent error? Round your answer to the nearest tenth of a percent.

Answers

Cory's percent error for his trip time prediction was 13.5% after rounding to the nearest tenth of a percent.

To calculate Cory's percent error for predicting his travel time to Baltimore from Washington D.C., we can use the formula for percent error:

Percent Error =[tex]|(Actual Value - Predicted Value) / Actual Value| \times 100%[/tex]

In this case, Cory's predicted time (Predicted Value) is 64 minutes, and the actual time taken (Actual Value) is 74 minutes. We can plug these values into the formula:

Percent Error = [tex]|(74 - 64) / 74| \times 100%[/tex]
Percent Error = [tex]|10 / 74| \times 100%[/tex]
Percent Error =[tex]0.1351 \times 100%[/tex]

Calculating further:

Percent Error = 13.51%

When rounded to the nearest tenth, Cory's percent error is 13.5%.

Cosine law part 2 in need of help (ignore question 67)

Answers

the law of cosines applies if you have an angle and its sides making it up, so say, if you had angle B and sides "a" and "c", angle B is made by those two sides, and thus the law of cosines would apply to get a missing side or angle.

in this case, we have two angles, B and C and only one side, so.... no dice on the law of cosines then.

now... .let's check closely, B is 66° and C is 28°... wait just a second!, that means A is 180 - ( 66 + 28 ), or 86°.

so then

[tex]\bf \cfrac{sin(C)}{c}=\cfrac{sin(A)}{a}\implies \cfrac{sin(28^o)}{11.6}=\cfrac{sin(86^o)}{a}\implies a=\cfrac{11.6\cdot sin(86^o)}{sin(28^o)}[/tex]

make sure your calculator is in Degree mode.

but "a" is roughly 24.6484428

The price of a notebook was $3.50 yesterday. Today, the price rose to $4.00 . Find the percentage increase. Round your answer to the nearest tenth of a percent.

Answers

percent increase : (4.00 - 3.50) / 3.50....* 100
                                0.50 / 3.50...* 100
                                0.1428 * 100
                                 14.28% ...this rounds to 14.3% <==

The percentage increase of the notebook is 14.3%.

What is the percentage?

The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.

Given that the price of a notebook was $3.50 yesterday. Today, the price rose to $4.00

The percent increase will be calculated as,

P = [ (4.00 - 3.50) / 3.50 ] x 100

P = [ 0.50 / 3.50 ] x 100

P = 0.1428 x  100

P = 14.28% or 14.3%

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