Question

A powdered drink mix calls for a ratio of powder to water of 1:8. If there are 32 cups of powder, how many total cups of water are needed?

Answer 1

`256` cups of water are needed.

Explanation:

If `w` is the number of cups of water needed to maintain the ratio
`color(white)("XXX")("powder")/("water") = 1/8 = 32/w`

`rArrcolor(white)("XXX")1xxw=8xx32`

`rArrcolor(white)("XXX")w=256`