Question

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)

Answer 1

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

2. 1/3 cup of red paint should be added to 1 cup blue paint

3. The unit price each cup of blue paint would be $8

Answer 2

A: Lara mixed 3 cups of blue paint with one cup of red paint.
B: Lara should add 1/3 a cup of red paint for every cup of blue paint
C: $8