Brooks could mow the lawn in 4 hours that means every hour he does 1 fourth of the job does that make sense think about it I'm going to say it again.Brooks could mow the lawn in 4 hours that means he does 1 fourth of the job in every hour. So every hour he's going to do half of the job.MA, Stanford University Teaching in the San Francisco Bay Area Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts It is possible to solve word problems when two people are doing a work job together by solving systems of equations.
In this situation Brooks and Jeremy are asked to mow a lawn together. Brooks can mow a lawn in 4 hours, Jeremy could mow the same lawn twice as fast. Before we do that let's figure out how fast Jeremy mows, he goes twice as fast as Brooks so if Brooks takes 4 hours then Jeremy is going to take 2 hours right? Twice as fast means half as much time so Jeremy is going to be 2 hours to do the job by himself.
2 hours alone, okay so what I'm going to be doing is writing fractions for each of these guys and then adding those fractions together to see how quickly they could do this job working together.
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