SOLUTION: write an equation and solve Frank runs two-thirds as fast as Ted. In two hour Ted runs 8 mi farther than Ted. how fast does he run?

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Question 993580: write an equation and solve
Frank runs two-thirds as fast as Ted. In two hour Ted runs 8 mi farther than Ted. how fast does he run?
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
Person    Rate          Time        Distance
FRANK     (2/3)r          2         %282%2F3%29r%2A2          
TED        r              2          r%2A2
EQUATION:                       r%2A2-%282%2F3%29r%2A2=8


SOLVE
2r%281-2%2F3%29=8
2r%281%2F3%29=8
r=8%283%2F2%29
highlight%28r=12%29