SOLUTION: Last month, Jacob traveled from Miami to New Orleans by train and made two stops along the way. The average speed for the three legs of his trip is defined as v1, v2, v3 respective
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Question 466029: Last month, Jacob traveled from Miami to New Orleans by train and made two stops along the way. The average speed for the three legs of his trip is defined as v1, v2, v3 respectively. The average speed for the entire trip is given by
3
____________
1---1---1
__ + ___ + __
v1----v2----v3
a. Simplify the complex fraction.
b. Find the average speed for the entire trip when v1 = 101mph, v2 = 71mph,
v3 = 106mph. Round to the nearest mph.
a. 3v1 v2 v3
-------------
v1v2+v1v3+v2v3; b. 91mph
b. 3v1 v2 v3
-------------
v1+V2+v3-----; b. 93mph
c. 3v1v2v3
------------
v1+v2+v3----; b. 90mph
d. 3v1v2v3
------------
v1v3+v2v3---; b. 93mph
e. 3v1v2v3
------------
v1v2+v1v3+v2v3 ; b. 90mph
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
So the answer is either a) or e). But which one? Looks like you have a little calculator work to do.
John
My calculator said it, I believe it, that settles it
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