SOLUTION: two small planes start from the same airport and fly in opposite directions. The first plane flies at a rate of 110 mph and the second plane flies at 130 mph. In how many hours wil

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Question 1203504: two small planes start from the same airport and fly in opposite directions. The first plane flies at a rate of 110 mph and the second plane flies at 130 mph. In how many hours will they be at 399 miles apart?
a) Let h= the time the planes spent traveling. Write the equation you would use for this time.
b) In hours, the planes will be 399 miles apart. (around to one decimal place.)
c) Convert your time from b) to hours to hours to minutes:
Hours and Minutes

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!


a) Let h= the time the planes spent traveling. Write the equation you would use for this time.
Distance+=+%28Rate%29%28Time%29
d1+=+110%2Ah....the distance that first plane will make
d2+=+130%2Ah....the distance that second plane will make
total distance: d=d1%2Bd2=+110h%2B130h

b) In hours, the planes will be+399 miles apart. (around to one decimal place.)
if
d=399mil
399=+110h%2B130h
h=%28399%2F240%29
h=%28133%2F80%29
h=1.7hours
c) Convert your time from b) to hours to hours to minutes:
1.7hours=102minutes