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Bad White [126]
3 years ago
7

A jet and a light plane leave the same airport at the same time and travel in opposite directions at 960 km/h and 560 km/h, resp

ectively. In how many hours will they be 4560 km apart?
Mathematics
1 answer:
alisha [4.7K]3 years ago
5 0

The jet travels a distance of

(960 km/h) <em>t</em>

after time <em>t</em>, while the light plane travels a distance of

(560 km/h) <em>t</em>

The jet is faster than the light plane, so the distance between them is

(960 km/h) <em>t</em> - (560 km/h) <em>t</em> = (400 km/h) <em>t</em>

so the time it takes for them to be 4560 km apart is

(400 km/h) <em>t</em> = 4560 km

==>  <em>t</em> = (4560 km) / (400 km/h)

==>  <em>t</em> = 11.4 h

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