92.8k views
22 votes
A housepainter mixed 4 gal of red paint with every 3 gal of blue paint in order to make a purple paint. Which

ratio of gallons of red paint to gallons of blue paint will make the same shade of purple paint?

28: 15
15:20
28:21
12:3

User Kaylanx
by
8.3k points

1 Answer

13 votes

Answer is Choice C

Reason:

The purple paint has 4 parts red and 3 parts blue.

The ratio of red to blue is 4:3

Multiply both parts of that ratio by 7 and we end up with 28:21

The two ratios 4:3 and 28:21 will produce the same shade of purple.

User Vivek Tiwari
by
7.7k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories