Math Weighted Average
posted by Sanjana on .
A cheetah is 300 feet from its prey. It starts to sprint toward its prey at 90 feet per second. At the same time the prey starts to sprint at 70 feet per second. When will the the cheetah catch the prey?
Can you please provide an explantaion?
Thanks

This has nothing to do with weighted average.
They run the same time, and the cheeta runs 300 feet further.
cheetadisstance=90t
prey distance=70t
but preydistance = cheetadistance300
so
70t=90t300, right? 
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