Andrew M. answered • 01/07/17

Tutor

New to Wyzant
Mathematics - Algebra a Specialty / F.I.T. Grad - B.S. w/Honors

Amy takes an hour so she does

1/60 of yhe job per minute

Father takes 30 mins so he does

1/30 of the job per minute

together they complete

1/60 + 1/30 per minute

or 3/60 of the job per minute

(3/60)x = 1

x = 60/3

x = 20 minutes

Andrew M.

01/07/17