is Jack's speed, and 
is Richard's.
which is very close to 3 (a bit below)Sat
jack can paint a house in 5 days, and richard can paint the same house in 7 days. working...
Mathematics, 19.08.2019 05:00 dogeking12
Sat
jack can paint a house in 5 days, and richard can paint the same house in 7 days. working together, how long will it take them to finish the job?
how do you solve this?
Answers: 1
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