Answer:
Step-by-step explanation:
b + g = 4 ...... b = 4 - g
3b + 5g = 15.50
3(4 - g) + 5g = 15.50
12 - 3g + 5g = 15.50
-3g + 5g = 15.50 - 12
2g = 3.50
g = 3.50 / 2
g = 1.75 <==== 1.75 lbs of green olives (or 1 3/4 lbs)
b + g = 4
b + 1.75 = 4
b = 4 - 1.75
b = 2.25 <==== 2.25 lbs of black olives (or 2 1/4 lbs)
