Problema Solution
an ostrich can run 8 mph faster than a giraffe. an ostrich can run 7 miles in the same time that a giraffe can run 6 miles. find the speed of each animal
Answer provided by our tutors
Let
v = the speed of the giraffe, v>=0
v + 8 = the speed of the ostrich
d1 = 6 mi the distance the giraffe runs
d2 = 7 mi the distance the ostrich runs
Since speed = distance/time follows time = distance/speed:
d1/v = d2/(v + 8)
6/v = 7/(v + 8)
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click here to see the equation solved for v
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v = 48 mph
v + 8 = 48 + 8 = 56 mph
The speed of the giraffe is 48 mph.
The speed of the ostrich is 56 mph.