Question

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 without him. Ten minutes later, Amir still had .25 of a mile to go before he reached the meeting g place, but sal was .75 of a mile beyond it. If Amir is running at a faster pace,6.7 mph, to neared hundredth of an hour, after how much time will Amir catch up to sal

Answer 1

The distance between them is 0.25+0.75=1 mi

so, when will amir travel 1 mile farther than sal?
remember, distance=speed times time

when will saldistance+1=amirdistance?
d=st
where h=time in hours
4.5h+1=6.7h
solve for h
mnus 4.5h both sides
1=2.2h
divide both sides by 2.2
0.454545=h
nearest hundreth
0.45 hours