# Acc. Algebra 2

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At 10:30 am two planes leave to Houston, one flying east 560km/h and the other flying west at 640 km/h. At what time will they both ne 2100km apart.

• Acc. Algebra 2 -

They would be flying for the same amount of time , t hours
distance covered by first = 560t km
distance covered by second = 640t km

560t + 640t = 2100
1200t = 2100
t = 1.75 hrs

or 1 hour and 45 minutes

so at 10:30 + 1:45 or 12:15 pm they will be 2100 km apart

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