SOLUTION: Jack usually mows his lawn in 4 hours. Marilyn can mow the same lawn in 7 hours. How much time would it take for them to mow the lawn together? It would take tham how many hours of
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-> SOLUTION: Jack usually mows his lawn in 4 hours. Marilyn can mow the same lawn in 7 hours. How much time would it take for them to mow the lawn together? It would take tham how many hours of
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Question 330287: Jack usually mows his lawn in 4 hours. Marilyn can mow the same lawn in 7 hours. How much time would it take for them to mow the lawn together? It would take tham how many hours of they worked together? Answer by scott8148(6628) (Show Source):
You can put this solution on YOUR website! they each mow a FRACTION of the lawn , based on their individual times ___ the fractions sum to one , the whole lawn
let t="time together"
(t / 4) + (t / 7) = 1
multiplying by 28 (the LCD) ___ 7t + 4t = 28 ___ 11t = 28
