Question

The table shows the amount of red paint that can be added to different amounts of white paint while making a custom paint color:

Paint Color
Quarts of Red Paint Quarts of White Paint
4 20
5 25
7 35
8 40


Which statement is true about the ratio of red paint to white paint in the paint color? (4 points)


It is 1:16.

It is 16:1.

It is 5:1.

It is 1:5.

Answer 1

the answer is 1:5 , c

Answer 2

you are looking for a unit rate (for 1 quart of red, how much white is used).

notice all red amounts are less than white, so b and c make no sense.

I look at the 4:20 and think, half of the paint would be 2:10, half of that is 1:5

(you could also start with 4:20 and divide each by 4 to get this answer)