SOLUTION: Bob can groom a horse for a show in 2 hours. Eddie can do it in 1.5 hours. How long will it take to groom one horse if they work together?

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Question 210275This question is from textbook Algebra Structure and Method Book 1
: Bob can groom a horse for a show in 2 hours. Eddie can do it in 1.5 hours. How long will it take to groom one horse if they work together? This question is from textbook Algebra Structure and Method Book 1

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
Bob can groom a horse for a show in 2 hours. Eddie can do it in 1.5 hours. How long will it take to groom one horse if they work together?
-----------------------------------
Bob DATA:
time = 2 hr/job ; rate = 1/2 job/hr
-----------------------------------------
Eddie DATA:
time = (3/2) hr/job ; rate = (2/3) job/hr
----------------------------------------------
Together DATA:
time = x hr/job ; rate = 1/x job/hr
================================================
Equation:
rate + rate = together rate
1/2 + 2/3 = 1/x
Multiply thru by 6x to get:
3x + 4x = 6
7x = 6
x = 6/7 hr
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6/7 hr = (6/7)*60 min is about 51 1/2 minutes
====================================================
Cheers,
Stan H.

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