Question

To make the perfect shade of green the paint store mixes 1/3 cup of yellow with 1/5 cup of

blue. Unfortunately the new guy put in 1 whole cup of blue, how much yellow paint is
needed to keep the same rate?

Answer 1

To maintain the same rate, 1/15 cup of yellow paint is needed.

Step-by-step explanation:

To keep the same rate, we need to maintain the same ratio of yellow to blue. The original ratio was 1/3 cup of yellow to 1/5 cup of blue. Since the new guy put in 1 whole cup of blue, we need to find out how much yellow paint is needed for the same ratio. Let x be the amount of yellow paint needed. We can set up the following proportion:

1/3 / 1/5 = x / 1

Solving this proportion, we get: x = (1/3) * (1/5) = 1/15 cup of yellow paint is needed.