If Alex does a job in 87 hours and with the help of Chloe they can do it together in 58 hours, how long would it take Chloe to do it alone?
Patrick B.
answered 08/16/20
Math and computer tutor/teacher
Alex work rate is 1/87
combined work rate is 1/58
1/87 + 1/x = 1/58
Multiplies by 87*58*x
58x + 87*58 = 87x
87*58 = 29x
x = 174
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