The ratio of the number of cups of blue paint to the number of cups of red paint that lara mixed to make a shade of purple paint is 3: 1.
part a: write a sentence to describe the number of cups of blue paint that lara mixed with each cup of red paint. (4 points)
part b: how many cups of red paint should lara add to each cup of blue paint to make the shade of purple? explain your reasoning. (4 points)
part c: if lara purchased 6 cups of blue paint for $48, what is the unit price per cup of blue paint? (2 points)

The ratio of the number of cups of blue paint to the number of cups of red paint that Lara mixed to make a shade of purple paint is 3:1.

This means Lara mixed 3 cups of blue paint and 1 cup of red paint to get purple.

Part A: Write a sentence to describe the number of cups of blue paint that Lara mixed with each cup of red paint.

Lara mixed 3 cups of blue paint with 1 cup of red paint.

Part B: How many cups of red paint should Lara add to each cup of blue paint to make the shade of purple?

Lara should use 1/3 cups of red paint to each cup of blue paint to make a shade of purple.

3 cups of blue paint needs = 1 cup of red paint.

1 cup of blue paint will need = cup of red paint.

Part C: If Lara purchased 6 cups of blue paint for $48, what is the unit price per cup of blue paint?

The unit price per cup of blue paint is = dollars.

c. 4 and 1/2 pounds is the answer! : )

here is a big fat