two airplanes leave pensacola florida at the same time and fly in opposite directions. one airplane travels 50 miles per hour faster then the other. apfter 3 hours they are 2,940 miles apart. what is the speed of the faster plane?
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OpenStudy (anonymous):
a. 425 miles per hour
b. 450 miles per hour
c. 480 miles per hour
d. 515 miles per hour
OpenStudy (anonymous):
im going to help you right now :) it'll take just a sec
OpenStudy (anonymous):
okay thanks :) i really dont understand it
OpenStudy (anonymous):
okay i was just gonna tell you the answer but ill show you how to do it
OpenStudy (anonymous):
okie dokie
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OpenStudy (anonymous):
okay so one airplane travels 50 miles per hour faster then the other. multiply 50 by 3. what is that?
OpenStudy (anonymous):
hello?
OpenStudy (anonymous):
150
OpenStudy (anonymous):
okay im very sorry, somehow it's getting hard to explain so can I just tell you the answer?
OpenStudy (anonymous):
yes lol its okay
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OpenStudy (anonymous):
its b.
OpenStudy (anonymous):
okie dokie thank you :)
OpenStudy (anonymous):
welcome
OpenStudy (anonymous):
Let x be the speed of the faster airplane.
Solve the following for x:
3 (x + (x - 50)) = 2940
x = 515 mph
OpenStudy (anonymous):
thanks
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