Richard wanted to make snow ice cream. His grandmother's recipe called for 7 cups of snow. However, when Richard went to make the ice
cream his snow melted a little and he ended up having to have 9 cups of
snow. What is the percent error of the recipe?

2/3

step-by-step explanation:

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

b

step-by-step explanation:

i dont know