Answer:
15 pints total
Step-by-step explanation:
if you need 2 red and 3 yellow for each shade of orange and you use 9 yellow total that is 2 reds for every 3 reds, so that is 2+3+2+3+2+3=15.
or you need 5 pints to make the orange shade and you use 3 times the ammount of yellow so that is 3 times 5 = 15
parallel
-5( -x+y)=-2(-5)
5x-5y=10