Question

Dani buys a juice concentrate that requires a ratio of 3 cups of water to 1 cup of concentrate. Which equation could be used to fine c, the number of cups of water that Dani should use with 6 cups of concentrate

Answer 1

Dani buys a juice concentrate that requires a ratio of 3 cups of water to 1 cup of concentrate.

So we can write this ratio as

`(1)/(3)`

Now let c denotes the number of cups of water.

So we need to find c that is used for 6 cups of concentrate.

Again, we can write this ratio as

`(6)/(c)`

Now let us equate them together,

`(1)/(3)=(6)/(c)`

If we perform the cross multiplication then

`\begin{gathered} c*1=6*3 \\ c=6*3 \\ c=18 \end{gathered}`