# Math

1. Nicole plans to apply 2 coats of varnish to a square floor measuring 12 feet on each side. if 1 quart of varnish covers 150 square feet, what is the minimum number of quarts of varnish nicole needs for 2 coats of varnish?

A) 1
B) 2
C) 3
D) 4

So this question is really blowing my mind. How would I figure this problem out. It only gives me the sides of the floor and I feel like in order to solve this I need more information and the length. If someone could help that would mean the world to me. Thank you.

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1. First, note that the floor is square.

The formula for the area of a square is

A = LW
or
A = s^2

Can you take it from there?

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Ms. Sue
2. I'm still confused...

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3. The side of the square is 12 feet.

A = 12^2
A = 144 square feet

She wants to give the floor 2 coats -- so the total area to be covered is 288 square feet.

How many quarts of varnish does she need?

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Ms. Sue
4. Oh ok! So about 3. There's gonna be a little extra but if rounded it would be 3.

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5. One quart covers 150 square feet; two quarts cover 300 square feet.

Aren't two quarts enough?

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Ms. Sue
6. Oh yeah! I'm so sorry I got 300 but somehow came up with 3 quarts. Sorry about that.

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