A new color of green requires 5 parts yellow to 4 parts blue .If the painter mixer used 30 gallons of yellow . How many gallons of blue are needed

Answer 1

The ratio of yellow to blue is 5:4.

If the painter used 30 gallons of yellow, we can set up a proportion to find out how many gallons of blue are needed:

5/4 = 30/x

Cross multiply:
5x = 120
x = 24

So, the painter would need 24 gallons of blue to mix with the 30 gallons of yellow.