Question

Jan mixed 2 pints of blue paint with 5 pints of red paint to make purple paint. He wrote the equation b= ( )r to represent the proportional relationship. What number should go in the box. Explain how you know PLZZ I will give you 100 points

Answer 1

so here

ratio of mixture is actually ratio of number of pints

so

blue pints/ red pints = b/r =2/5

so

b = (2/5) r

b = (0.4) r