Homework Help: algebra. help!!

Posted by cynthia on Sunday, February 26, 2012 at 7:47pm.

my answer is 63.56. i dont know if its right answer. here this problem:

It takes Scott an average of 45 min to prune 1 tree. Victor takes 65 min to prune a tree on average. The Scott-Victor Pruning Service has the contract to prune 92 trees in Flagstaﬀ, AZ. How long will it take them to prune all the trees

algebra. help!! - bobpursley, Sunday, February 26, 2012 at 7:53pm
rate= rate1+ rate2
rate= 1tree/45min + 1tree/65min= (65+45)/65*45

time= numbertrees/rate= 92(65*45)/110 in minutes, in hours divide by 60. You are wrong.

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