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3 years ago

Wilson's brother earns $185 each month working an after-school job. What is the total amount of money he will earn after

Mathematics

1 answer:

prisoha [69]3 years ago

6 0

185 • 12 = $2,220
So your answer is $2,220

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The volume of a sphere can be determined by the formula V = 4/3 πr^3, where r is the radius. What is the volume of a sphere with

allochka39001 [22]

Answer:

$V = \frac{99}{7} x^{9}y^{-6}$

Step-by-step explanation:

Given

$V = \frac{4}{3}\pi r^3$

Required

Find V when

$r = \frac{3}{2}x^3y^{-2$

Substitute $\frac{3}{2}x^3y^{-2$ for r in $V = \frac{4}{3}\pi r^3$

$V = \frac{4}{3}\pi * (\frac{3}{2}x^3y^{-2})^3$

Open bracket

$V = \frac{4}{3}\pi * \frac{3}{2}^3 * x^{3*3}y^{-2*3}$

$V = \frac{4}{3}\pi * \frac{27}{8} * x^{9}y^{-6}$

Simplify the fractions

$V = \pi * \frac{9}{2} * x^{9}y^{-6}$

Let

$\pi = \frac{22}{7}$

So:

$V = \frac{22}{7} * \frac{9}{2} * x^{9}y^{-6}$

$V = \frac{11}{7} * \frac{9}{1} * x^{9}y^{-6}$

$V = \frac{99}{7} * x^{9}y^{-6}$

$V = \frac{99}{7} x^{9}y^{-6}$

6 0

3 years ago

How long will it take for carbon 14 to decay to 10 % of it's original amount

Julli [10]

I believe that it will take one day

5 0

3 years ago

Peter's dog eats 0.3 kilograms of dog food each day. How much dog food will Peter's dog eat

11111nata11111 [884]

All you have to do is multiply 0.3 by 8.

8×0.3=2.4

The dog will eat 2.4 kilograms of food in 8 days. Hope that helps!

8 0

3 years ago

Read 2 more answers

MATH IS HARD. HELP<br> Change the following into a single fraction: 1− (a+b/a−b)

lianna [129]

Answer:

-2b/(a-b)

Step-by-step explanation:

1− (a+b/a−b)

We need to get a common denominator of a-b

1 = (a-b)/(a-b)

Replace 1 with (a-b)/(a-b)

(a-b)/(a-b) - (a+b)/(a-b)

Put over the common denominator

(a-b) - (a+b)

-----------------

(a-b)

Distribute the minus sign.

(a-b) - a-b)

-----------------

(a-b)

a-a-b-b

---------------

a-b

-2b

----------

a-b

6 0

2 years ago

A lumberyard will deliver wood for $7 per board foot plus a delivery charge of $10. Find a function C(x) for the cost (in dollar

Paladinen [302]

Answer:

C(x) = 7x + 10

Step-by-step explanation:

If the delivery charge is $10 for any number of board feet ordered.

If the delivery charge is $10 for each board feet ordered, the function would

be C(x) = (7 + 10)x = 17x

4 0

3 years ago