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Brums [2.3K]
3 years ago
10

Sal was tired of waiting for Amir to show up at their meeting place, so he started running at an average speed of 4.5 mph withou

t him. Ten minutes later, Amir still had 0.25 of a mile to go before he reached the meeting place, but Sal was 0.75 of a mile beyond it. If Amir is running at a faster pace, 6.7 mph, to the nearest hundredth of an hour, after how much time will Amir catch up to Sal?
0.04 hours
0.09 hours
0.23 hours
0.45 hours
English
2 answers:
siniylev [52]3 years ago
7 0

a=-.25+6.7t, s=.75+4.5t  when Amir catches up a=s so:


-.25+6.7t=.75+4.5t  (add .25 to both sides)


6.7t=1+4.5t (subtract 4.5t from both sides)


2.2t=1  (divide both sides by 2.2)


t=10/22 hr


t≈0.45 hr (to nearest hundredth)

the answer is 0.45



Helga [31]3 years ago
6 0

Answer:

0.45 hours

Explanation:

because i just took the quiz

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