Answer:
1/2 + 3/4 + 11/4 +11/4
=27/4
d
Step-by-step explanation:
1.2 laps per minute
divide laps/minutes.
14.86854, or 15
The answer is on Chegg.com
2(x+10) = 3x - 30
2x + 20 = 3x - 30
3x - 2x = 20 + 30
x = 50
