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OpenStudy (anonymous):
An automobile travels the 150-mile distance between two towns in 2 1/2 hours. An airplane travels 4 times as fast as the auto. What is the speed of the airplane in miles per hour?
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OpenStudy (apoorvk):
so the speed for the automobile = distance travelled/time taken. You get the speed for the automobile. now 4 times that will be the speed of your plane. helps?
OpenStudy (anonymous):
yes..thank you
OpenStudy (apoorvk):
no worries :)
OpenStudy (anonymous):
\[4\frac{150}{\frac{5}{2}}=240 \text{mph} \]
OpenStudy (anonymous):
thank you
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