Question

Question 134 of 190FINAL- MathematicsIf it takes 4.5 gallons of paint to paint 3 rooms, how many whole gallons of paint will you have to buy to paint 7 rooms?DO NOT

Answer 1

11 gallons

Explanation:

We can calculate the amount of gallons to be able to whistle 7 rooms by means of the following proportion:

`(4.5)/(3)=(x)/(7)`

Let x be the number of gallons needed, we solve for x:

`\begin{gathered} x=(4.5)/(3)\cdot7 \\ \\ x=10.5\approx11\text{ gallons} \end{gathered}`

Since they must be whole gallons, it takes 11 gallons to paint 7 rooms.