jack usually mows his lawn in 6hr. mary mows the same yard in 5hr. how long will it take them to mow the yard together? i got 2 8/11?

Question

amistre64 · Answer

how much does J cut in 1 hour?

how much does M cut in 1 hour?

J+M = total cut in 1hour

amistre64 · Answer

flip that number for time taken ...

amistre64 · Answer

$$\frac{1}{6}+\frac{1}{5}=\frac{5+6}{5*6}$$
flips to:$$\frac{30}{11}$$hours to complete

amistre64 · Answer

your number looks good

anonymous · Answer

so would i write 2 8/11 for my answer?

anonymous · Answer

i dont think so

anonymous · Answer

oh i see if i divide it out from 30/11 it will be that

amistre64 · Answer

they tend to want the time in hrs min sec

anonymous · Answer

it will be mary plus jack= 11 hours together

amistre64 · Answer

2 hours and 8/11 of another

amistre64 · Answer

no abdullah; thats incorrect

amistre64 · Answer

if 2 people work on the same yard they dont finish it in longer time then if they do it alone

anonymous · Answer

ok

amistre64 · Answer

well, not mathically at least lol

amistre64 · Answer

60/11 = an hour divided up into 11th parts; times 8 = minutes taken in an hour

amistre64 · Answer

2 hours, 43 mins, and a little over 30 secs more

anonymous · Answer

i get it