A shade of green paint is made by mixing 3 parts of blue paint with 7 parts of yellow paint. how much yellow paint do you need to make 70 quarts of green paint?

A. 21 quarts
B. 40 quarts
C. none of the choices are correct.
D. 10 quarts
E. 49 quarts

Question

A shade of green paint is made by mixing 3 parts of blue paint with 7 parts of yellow paint. how much yellow paint do you need to make 70 quarts of green paint?

A. 21 quarts
B. 40 quarts
C. none of the choices are correct.
D. 10 quarts
E. 49 quarts

anonymous · Answer

To make shade of green paint, 3/10 is blue while 7/10 is yellow.
To make 70 quarts of green multiply 70 by 7/10.

anonymous · Answer

10x = 70
x = 7 is the multiplier
therefore
7*7 = 49 qts of yellow paint
and
7*3 - 21 qts of blue paint