Question

Melanie mixes water with plant fertilizer in a proportional relationship that can be represented by the equation w=3p, where w is the number of quarts of water and p is the number of tablespoons of plant fertilizer. To keep this suggested ratio,should Melanie mix 1 quart of water for every 3 tablespoons of fertilizer or 3 quarts of water for every 1 tablespoon of fertilizer? Explain

Answer 1

w/p = 3
or
w in quarts = 3 * p in spoons

1 quart = 3* p in spoons for 1 qt
so
for 1 qt, p = 1/3 spoon

for p = 1 spoon
you get 3 quarts of water