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Two cars leave towns 640 kilometers apart at the time and travel toward each other. One cars rate is 14 kilometers per hour more than the others. If they meet in 4 hours, what is the rate of the faster
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Jul 13, 2018
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Two cars leave towns 640 kilometers apart at the time and travel toward each other. One cars rate is 14 kilometers per hour more than the others. If they meet in 4 hours, what is the rate of the faster car? Do not do any rounding.
Mathematics
high-school
Reiallenramos
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Reiallenramos
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Car A = 14 + Car B
4(Car A + Car B)=640
A=B+14
4(A+B)=640
A=B+14
A+B=160
(B+14) + B= = 160
2B+14=160
2B=146
B=73 A= 87
73+73+73+73+87+87+87+87
292+348=640
I think the faster car went 87 kilometers per hour.
Tareq Aziz
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Jul 15, 2018
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Tareq Aziz
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The rate of the faster car would be 87 kilometers per hour.
Mwfearnley
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Jul 19, 2018
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Mwfearnley
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