Question

to make fruit punch darleen mixes 7 cups of water to every 3 cups of punch powder what proportion can be used to determine how many cups of punch powder darleen will need for 28 cups of water?

Answer 1

Greetings from Brasil...

Refer to attached

Let's make the ratio between cups of water and powdered punch.

ratio: 7/3

Multiplying that ratio by a number X we get 28 in the numerator and Y in the denominator, so

(7/3) · (X/X) = 28/Y

7X = 28

X = 4

3 · 4 = Y

Y = 12

So, for 28 cups of water will require 112 cups of powdered punch