Question

The box says to use 3 tablespoons of the chemical for 2 cups of water. David has a container that will hold 5 cups of water. Which proportion would be used to determine how many tablespoons of the chemical he needs to use for the 5 cups of water?

Answer 1

represents We have the next information

ts= tablespoons

cw= cups of water

3 ts ------- 2 cw

x ------- 5 cw

x represent the tablespoons necessary to the portion of 5 cups of water

$x=\frac{5\cdot3}{2}=\frac{15}{2}=7.5$

he needs 7.5 tablespoons of the chemical to use 5 cups of water