Question

If two cans of paint can cover 750 square feet, how much money would it cost to paint 15,000 square feet at $25 per can and a sales tax rate of 7%?

Answer 1

Given

2 cans cover 750 square feet

x cans cover 15000 square feet

Then, find x:

`\begin{gathered} 750* x=15000*2 \\ 750x=30000 \\ (750x)/(750)=(30000)/(750) \\ x=40 \end{gathered}`

This is, 40 cans of paint can cover 15000 square feet.

On the other hand, we have:

1 can has a price of $25, so

`40*25=1000`

Therefore, 40 cans have a price of $1000

And finally, the sales tax rate is 7%, this is:

`1000*(7)/(100)=1000*0.07=70`

Hence, the total cost is

`1000+70=1070`

Answer: E. $1070