Question
my answer is 63.56. i don't 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
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
Answers
bobpursley
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.
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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