Answer:
135 gallons
Step-by-step explanation:
gallons of a 50% + 90 gallons of 25% = mixture that is 40%
50x + 25(90) = 40(x + 90)
50x + 2250 = 40x + 3600
10x = 1350
x = 135
150
I think the answer is m= -91
ez
14/15 - 9/15 = 1/3
1/3 = 5/15
the volume of the tennis ball is 1436