Please help solve
Math again

Answer:

Adam raked 340 liters

Step-by-step explanation:

Bob raked more leaves than Adam

5% more means take 100 % and add 5% = 105%

105% as a decimal is 1.05

Bob = 1.05 * Adam

We know Bob raked 357

357 = 1.05 Adam

Divide by 1.05

357/1.05 =1.05/1.05 Adam

340 = Adam

Answer:

38809/(4pi) cm^2

Step-by-step explanation:

So the circumference of the wheel is 197. So to find the radius, we divide by 2 pi. So now we have 197/(2pi) as the radius. Now we have to find the area, so it is 38809/(4pi)

The area of the solid wheel is  3090 cm².

The circumference of a circle is the distance around the circle which is 2πr.

The diameter of a circle is the largest chord that passes through the center of a circle it is 2r.

We know circumference is the distance around the circle which is 2πr.

Given, Each time a solid bicycle wheel turns, the bicycle travels 197cm.

Therefore,

2πr = 197.

r = 197/π×2.

r = 31.37 cm.

Therefore, The area of the solid wheel is,

πr².

= 3.14×(31.37)² cm².

= 3090 cm².

learn more about circles here :

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Answer:

x∧2+4x-16

Step-by-step explanation:

Answer:x^2+4x-12

Step-by-step explanation: I got it right

Answer:

The correct answer is D.

[tex]50-u>48\qquad\text{subtract 50 from both sides}\\\\-u>-2\qquad\text{change the signs}\\\\u<2[/tex]

Answer:

2 miles

Step-by-step explanation:

We can use ratios to solve this problem

3/4 miles         x miles

--------------- = ---------------

3/8 hours          1 hours

Using cross products

3/4 * 1 = 3/8 * x

Multiply by 8/3 to isolate x

3/4 * 8/3 = 3/8*8/3 *x

8/4 = x

2 =x

Answer:

She will earn 1,920 points.  PLEASE GIVE BRAINLIEST!!!

Step-by-step explanation:

Level 1 : 15 points   x 2 = level 2

Level 2 : 30 points   x 2 = level 3

Level 3: 60 points    x2 = level 4

Level 4:  120 points   x2 = level 5

Level 5:  240 points   x2 = level 6

Level 6:  480 points  x2 = level 7

Level 7:  960 points  x2 = level 8

Level 8:  1,920 points

Answer: Yoghes has $0.87

Step-by-step explanation: We want to know the total amount of money that Yogesh has:

each quarter values 25¢, a dime values 10¢, and a penny values 1¢

(or the values can be written as $0.25, $0.10 and $0.01 respectively)

Yogesh has 3 quarters, so this means he has: 3*$0.25 = $0.75

he has 1 dime, so in dimes, he has: $0.10

he has 2 pennies, so in pennies, he has: 2*$0.01 = $0.02

If we sum up the 3 amounts, we have:

Total = $0.75 + $0.10 + $0.02 = $0.87

To find the percentage change, here is what we can do:

difference/original value x 100%

The difference: 149-49 = 100

The original value:149

The percentage change:

100/149 x 100%

=67.11409...%

Therefore the answer is 67.1%(corr. to three significant figures)

Hope it helps!

The percent of change from $49 to $149 is approximately 204.08%.

To calculate the percent of change from $49 to $149, we first find the difference in the two amounts.

The difference between $149 and $49 is $149 - $49 = $100.

Then, we divide the difference by the original amount (in this case, $49) to find the change in terms of the original amount.

This gives us $100 / $49 = 2.0408.

To convert this to a percentage, we multiply by 100. 2.0408 x 100

= 204.08%.

So the percent of change from $49 to $149 is approximately 204.08%.

Final answer:

The position vector of vector u is (-10, -26). The magnitude of vector u is sqrt(776). The direction of vector u is 68.2 degrees.

Explanation:

The position vector of vector u can be found by subtracting the initial point from the terminal point. So, the position vector of u is (5-15, -4-22) = (-10, -26).

The magnitude of vector u can be found using the distance formula, which calculates the length of a vector. The formula is: magnitude = sqrt(x^2 + y^2), where x and y are the components of the vector. So, for vector u, the magnitude is: sqrt((-10)^2 + (-26)^2) = sqrt(100 + 676) = sqrt(776).

The direction of vector u can be found using trigonometry. The direction angle (theta) is given by tan(theta) = y/x. So, for vector u, the direction angle is: tan(theta) = (-26)/(-10) = 2.6. Converting to degrees, theta = arctan(2.6) = 68.2 degrees.

Here is how you solve this problem with long-division. Hopefully it helps!

Answer:

A.

Carla is correct because 3.5 × 14 is less than 50.

Step-by-step explanation:

3.5m ≥ 50

To determine how many miles she needs to run, divide each side by 3.5

3.5m/3.5  3.5m ≥ 50 50/3.5

m ≥ 14.28571429

She must run more than 14 miles

Carla is correct because 14* 3.5 = 49.  That is less than the 50 she wants to raise.

Answer:

True

Hope it helps!!

Answer:

x=9/4

Step-by-step explanation:

Performing the indicated multiplication, we get

2x - 3x + 4 = 3x - 5

Combining the x terms, we get -4x = -9, so that x = 9/4.

[tex]\( m\% \) of \( n \) is \( \frac{{m \times n}}{{p}}\% \) of \( p \).[/tex]

To find what percentage m% of n is of p, you would calculate:

[tex]\[ \text{Percentage} = \frac{{(m\% \text{ of } n)}}{p} \times 100\% \][/tex]

Substituting [tex]\( m\% \) of \( n \) with \( \frac{m}{100} \times n \), t[/tex]he formula becomes:

[tex]\[ \text{Percentage} = \frac{{\frac{m}{100} \times n}}{p} \times 100\% \][/tex]

Simplify the expression:

[tex]\[ \text{Percentage} = \frac{{m \times n}}{{100 \times p}} \times 100\% \][/tex]

[tex]\[ \text{Percentage} = \frac{{m \times n}}{{p}}\% \][/tex]

So,[tex]\( m\% \) of \( n \) is \( \frac{{m \times n}}{{p}}\% \) of \( p \).[/tex]

Answer:

y=1/3x+8

Step-by-step explanation:

you can use the formula y=mx+b

y=1/3x-1

10=1/3*6+b

10=2+b

b=8

y=1/3x+8

Answer:

Equation: 52+(52•.20) that is the first part for your answer you should get 10.4 or $10.40. Then you would take 52-10.4=41.60 then keeping that number in mind you do 41.60• .06 and get, rounded, 2.50. Then you would add 41.60+2.50 and get $44.10 as your answer . I hope I could help

Step-by-step explanation:

Answer:

Answer (a):

s + l = 22 ... (i)

43s + 75l = 1234 ... (ii)

Answer (b)

9 large dogs.

Step-by-step explanation:

Paws at Play made a total of $1234 grooming 22 dogs.

Paws at Play charges $43 to groom each small dog and;

$75 for each large dog.

Let the number of small dogs be 's'

And the number of large dogs be 'l'

A system of equations will be:

s + l = 22 ... (i)

43s + 75l = 1234 ... (ii)

Solving this set of simultaneous equations by elimination, we simply multiply (i) by 43 to get;

43s + 43l = 946 ... (i)

43s + 75l = 1234 ... (ii)

Subtracting (i) from (ii) we get;

32l = 288 , l = [tex]\frac{288}{32}[/tex] = 9

So there are 9 large dogs.

Answer:

18 logs.

Step-by-step explanation:

Since a stove burns 4 logs per 2 hours, then the stove will burn 2 logs in one hour. There fore in 9 hours the stove will burn 2*9 which is 18 logs.

4:2= 2 logs per hour

2*9=18 logs per 9 hours.

Answer:

16

Step-by-step explanation:

16 Because 2 divided by 8 equals 4 then 4x4 equal 16

Answer:

0.38 is a rational number because it can be expressed as fraction, and it isn't a repeating decimal.

Step-by-step explanation:

Repeating decimals aren't rational, and all rational numbers can be expressed as a fraction, or they aren't rational.

It's a rational number because it stops, the decimal is irrational if it continues forever without a pattern

Answer:

f(x) + g(x) = 6x^2 + 28x + 36

Step-by-step explanation:

Thirty eight

You begin to solve this by writing it like this [just as you have it].

f(x) = x^2 + 5                    Now put g(x) where you see x

f(g(x)) = [g(x)]^2 + 5          Now substitute the right side of g(x) wherever you see g(x)

f(x - 4) = [x - 4]^2 + 5        Expand the brackets

f(x- 4) = x^2 - 8x + 16 + 5

f(x - 4) = x^2 - 8x + 21

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

Thirty Nine

f(x) = (x + 4)^2

g(x) = 5(x + 2)^2

Expand f(x)

f(x) = x^2 + 8x + 16

Expand g(x)

f(x) + g(x) = x^2 + 8x + 16 + 5x^2 + 20x + 20

f(x) + g(x) = 6x^2 + 28x + 36

Answer: 6

You replace f(x) or y with 0, and then solve for x

y = (x+4)(x-6)

(x+4)(x-6) = y

(x+4)(x-6) = 0

x+4 = 0 or x-6 = 0 .... zero product property

x = -4 or x = 6

The x intercepts are -4 and 6. In this case, only 6 is the positive x intercept.

side note: The term "root" is another way to say "x-intercept"

x - price of a video tape

y - price of a DVD

[tex]\left\{\begin{array}{ccc}2x+3y=134\\x+5y=179&|\text{subtract 5y from both sides}\end{array}\right\\\\\left\{\begin{array}{ccc}2x+3y=134\\x=179-5y&|\text{substitute to the first equation}\end{array}\right\\\\2(179-5y)+3y=134\qquad\text{use distributive property}\\\\(2)(179)+(2)(-5y)+3y=134\\\\358-10y+3y=134\qquad\text{subtract 358 from both sides}\\\\-7y=-224\qquad\text{divide both sides by (-7)}\\\\\boxed{y=32}\\\\\text{Put the value of y to the second equation}\\\\x=179-5(32)\\\\x=179-160\\\\\boxed{x=19}[/tex]

Answer:

If a car with a blowing horn is moving toward you, the pitch sounds higher than the actual emitted frequency.

Step-by-step explanation:

In figure,

        V= speed of wave

         U= speed of car

When car moving towards you, then

Car travels a distance in time T = VT

 Wave travels a distance in time T = UT

From figure,

                    change in wavelength (λ') = VT - UT= T(V-U)

Now,

        V = λ' f'         (f' →frequency observed by you)

         f' = V ÷ λ' = [tex]\frac{V}{T(V-U)}[/tex]

We know that

                      [tex]\frac{1}{T}[/tex] = f

Then,

        f' =  [tex]\frac{Vf}{V-U}[/tex]

        f' = [tex]\frac{f}{1-\frac{U}{V} }[/tex]

Hence, we can say that

           frequency increases as source moves toward you.

Answer:

B. Increase

Step-by-step explanation:

The closer together the crests, the higher the frequency (or pitch)

Answer: the actual correct answer is D

Step-by-step explanation: i know the test answers because i am in flvs too