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
Algebra.Com
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
RELATED QUESTIONS
Jack usually mows his lawn in 7 hours. Marilyn can mow the same yard in 5 hours. How much (answered by dabanfield,Alan3354)
Jack usually mows his lawn in 5 hours. Marilyn can mow the same yard in 4 hours. How much (answered by mananth)
Jack usually mows his lawn in 5 hours. Marilyn can mow the same lawn is 3 hours. How much (answered by solver91311)
jack usually mows his lawn in 3 hours. Marilyn can mow the same yard in 7 hours. How much (answered by scott8148)
Please help me
Jack usually mows his lawn in 3 hours. Marilyn can mow the same yard in (answered by ewatrrr)
Jack usually mows his lawn in 3 hours. Marilyn can mow the same yard in 7 hours. How much (answered by ewatrrr)
Jack usually mows his lawn in 4 hours. Marilyn can mow the same yard in 6 hours. How... (answered by LarsJongste,slim522)
Jack usually mows his lawn in 3 hours. Marilyn can mow the same yard in 4 hours. How much (answered by solver91311)
Jack usually mows his lawn in 4 hours. Marilyn can mow the same yard in 5 hours. How... (answered by nerdybill)
Jack usually mows his lawn in 4 hours. Marilyn can mow the same yard in 6 hours.
How... (answered by robertb)