Please help how to answer this

Answer:

A motorcycle will complete the 540 mile trip in [tex]\frac{540}{48} = 11.25 hr[/tex]

And the car will complete it 2.25 hours less, i.e 11.25 -2,25 = 9 hours.

then,

Speed of the car is  [tex]\frac{540}{9} = 60 km/hr[/tex]

60t + 48t = 540

108t = 540

Divide both sides by 108 we get

t = 5

So, they will meet in 5 hours,

After 5 hours, the motorcycle will have traveled [tex]48 \times 5 = 240 miles[/tex]

and the car will have traveled = [tex]60 \times 5 = 300 miles[/tex]

Given is :

The distance between the cities Chicago and Toronto is = 540 miles

Speed of motorcycle = 48 mph

So, time taken by motorcycle to cover 540 miles = [tex]\frac{540}{48}=11.25[/tex] hours

Hence, the motorcycle will complete the 540 miles trip in 11.25 hours.

As given, the car takes 2.25 hours less to cover the same distance, so car takes [tex]11.25-2.25=9[/tex] hours

So,the speed of the car therefore is [tex]\frac{540}{9}=60[/tex] mph.

Let both the car and motorcycle meets is 't' time.

So, [tex]60t+48t=540[/tex]

[tex]108t=540[/tex]

t = 5

So, they will meet in 5 hours.

After 5 hours, the motorcycle will have traveled 48x5 = 240 miles

And the car will have traveled 60x5 = 300 miles.

Answer:

x - 6y = -9

Step-by-step explanation:

We are given two points (-3,1) and (3,2) on a line so we will use them to find the slope.

Slope ([tex]m[/tex]) = [tex]\frac{2-1}{3+3} =\frac{1}{6}[/tex]

The standard form of the equation is [tex]y=mx+c[/tex] so we will substitute the values of the coordinates of a point and slope (m) to find the y-intercept (c).

[tex]2=\frac{1}{6} +c\\\\c=\frac{3}{2}[/tex]

So the equation of the line which passes through the given points will be [tex]y=\frac{1}{6} x+\frac{3}{2}[/tex] which can be rearranged to write it as:

x - 6y = -9

Answer:

Option C.

Step-by-step explanation:

The standard form of a line is

[tex]Ax+By=C[/tex]

It a line passes through two points then the equation of line is

[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]

It is given that the line passes through the points (-3,1) and (3,2). So the equation of line is

[tex]y-(1)=\dfrac{2-1}{3-(-3)}(x-(-3))[/tex]

[tex]y-1=\dfrac{1}{6}(x+3)[/tex]

Multiply both sides by 6.

[tex]6(y-1)=x+3[/tex]

[tex]6y-6=x+3[/tex]

Subtract 6y and 3 from both sides.

[tex]6y-6-6y-3=x+3-6y-3[/tex]

[tex]-6-3=x-6y[/tex]

[tex]-9=x-6y[/tex]

Interchange both sides.

[tex]x-6y=-9[/tex]

Therefore, the correct option is C.

Answer:

This is the actual steps and answer.

Step-by-step explanation:

\text{Exponential Functions:}

Exponential Functions:

y=ab^x

y=ab  

x

a=\text{starting value = }5000

a=starting value = 5000

r=\text{rate = }4\% = 0.04

r=rate = 4%=0.04

\text{Exponential Growth:}

Exponential Growth:

b=1+r=1+0.04=1.04

b=1+r=1+0.04=1.04

\text{Write Exponential Function:}

Write Exponential Function:

y=5000(1.04)^x

y=5000(1.04)  

x

Put it all together

\text{Plug in time for x:}

Plug in time for x:

y=5000(1.04)^{7}

y=5000(1.04)  

7

y= 6579.6589

y=6579.6589

Evaluate

y\approx 6580

y≈6580

round

The population after 7 years at the rate of 4% growth every year would be 6580.

Exponential growth is a function that grows or decays at a constant percent rate.

The formula used is [tex]y = b(1 + r)^ t[/tex]. where, y is the exponential growth function, b is the initial amount, r rate, and t time interval.

From the information given,

b = 5000

r = 4% = 4/100

= 0.04

t = 7 years

Therefore

[tex]y = b(1 + r)^ t[/tex]

[tex]y = 5000(1 + 0.04)^7[/tex]

[tex]y = 5000(1.04)^7[/tex]

y = 6580

Thus, The population after 7 years at the rate of 4% growth every year would be 6580.

Learn more about exponential growth;

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Answer: 2 solutions.

The given equation breaks down into these two equations

3x+12 = 18 and 3x+12 = -18

Basically 3x+12 equal to plus 18 and minus 18. This is due to the fact that something like |x| = 7 means x = 7 or x = -7, ie those x values are exactly seven units away from zero on the number line.

If you want to solve each equation, then

3x+12 = 18

3x = 18-12

3x = 6

x = 6/3

x = 2 is one solution

and

3x+12 = -18

3x = -18-12

3x = -30

x = -30/3

x = -10 is the other solution

Answer:

two irrational numbers are [tex]\sqrt{0.3},\sqrt{0.4}[/tex]

Step-by-step explanation:

We are given to find irrational number

we know that

irrational numbers are numbers that can not be represented as simple fraction

For example:

[tex]\sqrt{2} ,e,\pi[/tex]

but those irrational numbers should be between 0.3 and 0.7

so, we can take sqrt numbers between 0.3 and 0.7

we know that

[tex]\sqrt{0.3}=0.5477[/tex]

[tex]\sqrt{0.4}=0.632455[/tex]

Both values lies between 0.3 and 0.7

so, two irrational numbers are [tex]\sqrt{0.3},\sqrt{0.4}[/tex]

Answer:

line 2

Step-by-step explanation:

#1 You got it right

When a you add a number you need to add to both sides

So line 2  was an error because it only added on the left side, not right side

This question was asked almost 3 years ago, there is a very good chance that they're not even in school anymore, it's crazy to think about. 3 years ago, I was living in Washington, and had joined online school for the first time, while this guy was here, begging people for answers to a question so he could pass highschool. Now, he's probably living his best life right now and doesn't even know what I'm typing right now, either that, or he's working at McDonald's. Honestly though, time flies by so fast though, it really is crazy.

Answer:

80

Step-by-step explanation:

A triangle always measures to be 180 degrees. 50+50=100 so 80 degrees is left

Hello!! The answer is $22.08 Hope this helped!

$22.08 Would be the Answer for the price of a 20% off coupon on a $27.60 purchase.

Answer:

The Science Center charge less than the Dino Discovery museum for more then 10 students

Step-by-step explanation:

Let us assume that the number of students are x .

Let us assume that the total charge for x students be y.

As given

Mrs. Williams is deciding between two field trips for her class.

The Science Center charges $120 plus $5 per student.

Than the equations becomes

y = 120 + 5x

The Dino Discovery Museum simply charges $7 per student.

y = 7x

Than

[tex]120 + 5x < 7x[/tex]

[tex]120 < 7x - 5x[/tex]

[tex]120 < 2x[/tex]

[tex]\frac{120}{12} < x[/tex]

[tex]10 < x[/tex]

Therefore the Science Center charge less than the Dino Discovery museum for more then 10 students.

Answer:

c ∛ (16)

Step-by-step explanation:

2 ^ (4/3)

We can separate this into 2 pieces using the power of power rule in reverse

x^a ^b = x^ (ab)

(2^4 ) ^ 1/3

2 to the 4th power is

16 ^ (1/3)

We now have the cubed root of 16

∛ (16)

Answer:

The answer is C :)

Answer:

the answer is -9

Step-by-step explanation:

3 - 15 = -12

-12 - (-3) = 9 adding two negatives gives you a positive so its really, -12 + 3

Just substitute then solve

3-15-(-3)

Answer:

-9

If it helps draw a number line

<--------------------------------------------------------------------->

 -10            -5                 0              5                   10

start at 3, then left 15 spaces, then right 3 spaces

Answer: if you simplify 12/16 to 3/4 then you multiply that fraction by 25 you get 75/100 which translates to 75%.

Answer:

The formula for the volume of a sphere is:

Sphere Volume   =   4/3 • π • r^3

Sphere Volume   =   4/3 • π • 7^3

Sphere Volume   =   4/3 • π • 343

Sphere Volume   =   1,436.7550402417 cubic inches

Step-by-step explanation:

Final answer:

The volume of a hemisphere with a radius of 7 inches is calculated using the formula V = ½ (⅓πr³), resulting in a value of 571.1015 cubic inches, which rounds to 571.1 cubic inches.

Explanation:

To find the volume of a hemisphere with a radius of 7 inches, we use the formula for the volume of a sphere and then take half of that, since a hemisphere is just half of a sphere. The formula for the volume of a sphere is V = ⅓πr³. Since we need the volume of a hemisphere, our formula becomes V = ½ (⅓πr³). By substituting the given radius into the formula, we have:

V = ½ (⅓π(7 inches)³)

= ½ (⅓π(343 cubic inches))

= ½ (1142.203 cubic inches)

= 571.1015 cubic inches.

When we round this result to the nearest tenth, we get 571.1 cubic inches. Hence, the volume of the hemisphere is approximately 571.1 cubic inches.

Answer:

y = - 2x - 4

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

To calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (- 4, 4) and (x₂, y₂ ) = (2, - 8) ← 2 points on the line

m = [tex]\frac{-8-4}{2+4}[/tex] = [tex]\frac{-12}{6}[/tex] = - 2

the line crosses the y-axis at (0, - 4) → c = - 4

y = - 2x - 4 ← equation of line

Answer:

y= -2x-4

Step-by-step explanation:

Since, from the graph,we can see it is a straight line, therefore we apply the equation of the straight line that is:

y= mx+c where m is the slope and c is the intercept.

Since the points are(-4,4) and (2,8),

m= [tex]\frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }[/tex]

 = [tex]\frac{-8-4}{2+4}[/tex]

 =[tex]\frac{-12}{6}[/tex]

 = -2

Therefore, m= -2

Now,since c is the intercept and the line cuts y- axis at (0,-4), therefore

 c= -4

⇒y= mx +c

  y= -2x+ (-4)

 y= -2x_4

Answer: what’s the question

Step-by-step explanation:

Answer:

y = -3x + 2; y = ⅓x -14/3

Step-by-step explanation:

Step 1. Find the equation of the parallel line

Original line: y = -3x+ 7

Parallel line: slope = m₁ = -3

The line passes through (2, -4).

 y = m₁x + b      Insert the values

-4 = (-3)×2 + b

-4 = -6 + b        Add 6 to each side

b = 2

y = -3x + 2

===============

Step 2. Find the slope (m₂) of the perpendicular line

m₂ = -1/m₁     Substitute the value of m₁

m₂ = -1/(-3)

m₂ = ⅓

====================

Step 3. Find the equation for the perpendicular line

y = mx + b

y = ⅓x + b

The line passes through (2, -4).  

-4 = ⅓(2) + b      Substitute the values

-4 = ⅔ + b         Subtract ⅔ from each side

-4 - ⅔ = b

 b = -14/3

y = ⅓x - 14/3

In the image, below  the graph of your original equation is the red line.

The green line passing through (2, -4) is the parallel line.

The purple line passing through (2, -4) is the perpendicular to both lines.

Answer:

1 foot

Step-by-step explanation:

yuhh im doing the test so

The edge length of the original and new kennels were 3 and 4 feet respectively. Therefore, each edge length of the kennel increased by 1 foot.

Your question involves understanding the relationship between a cube's size, or its edge length, and its volume. The volume of a cube is calculated by cubing the edge length (Volume = Edge Length³). Therefore, the edge length of the original kennel is the cube root of 27, which is 3 feet. The edge length of the new kennel is the cube root of 64, which is 4 feet. So, each edge length of the kennel was increased by 1 foot (4-3).

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Answer:

6 1\20 is the answer

Step-by-step explanation:

Answer:

6 to the power of 1 over 20

Step-by-step explanation:

To round a number to the nearest hundredth, check the thousandth digit. If it's 4 or less, the hundredth digit doesn't change. If it's 5 or greater, round up the hundredth digit and increase it by 1.

To round a number to the nearest hundredth, you need to look at the thousandth place. If this digit is 4 or less, the hundredth digit remains the same. If the thousandth digit is 5 or greater, then you round up the hundredth digit by increasing it by 1. In this case,

Alex's batting average is 0.346, and the thousandth digit is 6, which is greater than 4. So, when rounded to the nearest hundredth, his batting average would be 0.35.

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Answer:

$3.15

Step-by-step explanation:

We start by dividing 4.5 by 100,(.045) to find what 1 percent is, once we have that we multiply by 30 (1.35)and get that and subtract it from 4.5

Answer:

The price of the coupon is $3.15.

Step-by-step explanation:

Boxes of sticky finger popsicles  are = $4.50

Supermarket is offering 30% coupon off.

We have to calculate the price with the coupon price of sticky finger popsicles will be given by

discounted price = original price - discount

                            = 4.50 - (30% of $4.50)

                           = 4.50 - (0.30 × 4.50)

                           = 4.50 - 1.35 = $3.15

The price of the coupon is $3.15.

Answer:

f^-1(x) = (x+2)/3

Step-by-step explanation:

To find the inverse of a function, exchange x and y and solve for y

y =3x-2

Exchange x and y

x =3y-2

Solve for y

Add 2 to each side

x+2=3y-2+2

x+2 = 3y

Divide each side by 3

(x+2)/3 =y

The inverse of the function is

f^-1(x) = (x+2)/3

Answer:

F-1(x)=(x+2)/3

Answer:

B

Step-by-step explanation:

Answer:

The answer is B : Perpendicular

Step-by-step explanation:

Parallel lines are lines that never intersect as   or do not meet so this is  not the case. Skew lines are lines that neither intersect nor they are parallel. This are lines that are in separate planes in space so they never touch. Adjacent lines are lnes that meet at a specific point , but can form any type of angle. Perpendicular lines are lines that cross and form 4 right angleso rangles of 90 degrees so this is the answer,

Answer:

D

Step-by-step explanation:

the answer is d because the amount of speed changes the total amount of distance that he travels in time

Answer:

4

Step-by-step explanation:

To figure out how many times the population of India  is as compared to the US, we take the population of India and divide by the population of the US

Population of India/population of US

1.2*10^9 /300000000

I will change 300000000  into scientific notation by moving the decimal 8 places to the left, so it becomes 3 *10^8

1.2*10^9 /3* 10^8

Now we divide the numerals and subtract the exponents

1.2/ 3  * 10^(9-8)

.4 * 10^1

.4*10

4

Answer:

There are 10,000 1s in Ten Thousand

Hope this helped:)

Step-by-step explanation:

[tex]-x-y=0\qquad\text{add y to both sides}\\\\-x=y\to y=-x\\\\\text{Choice any three x values and calculate the y values.}\\\\for\ x=0\to y=-0=0\to(0,\ 0)\\\\for\ x=-2\to y=-(-2)=2\to(-2,\ 2)\\\\for\ x=2\to y=-2\to(2,\ -2)[/tex]

Answer:

It will cost Irene $31.45 to fill the tank

Step-by-step explanation:

Irene's tank holds 14 gallons.  It has 5.5 gallons in it.  

14- 5.5  = 8.5

Irene can put in 8.5 gallons to fill it.

8.5 gallons and $3.70

8.5 * 3.7 = $31.45

It will cost Irene $31.45 to fill the tank

Answer:

Step-by-step explanation: