1. Greg is training for a mountain bike race. He leaves his car at the beginning of a trail and proceeds to bike
8 miles away and then comes back the same way to
his car. If he bikes at a constant rate, the function
graphed models the distance he is away from his car
after x minutes.

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Ответ:

sierravick123owr441

29.09.2021

Mathematics

9 hours

Step-by-step explanation:

12 people take 15 hours to complete one job. First let's ask how long it would take 18 people working at the same rate to complete the same job? We can use proportions to answer this

$\frac{12 people}{15 hours} = \frac{18 people}{x hours}\\x = \frac{18\times15}{12} = 22.5$

Now we know that one job takes 18 people 22.5 hours, so 2/5 of the job would take

$\frac{18\times15}{12} \times \frac{2}{5} = 9$

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1. Greg is training for a mountain bike race. He leaves his car at the beginning of a trail and proceeds to bike 8 miles away and then comes back the same way to his car. If he bikes at a constant rate, the function graphed models the distance he is away from his car after x minutes.