SOLUTION: A car traveled for 1/2 hour at r mi/h then increased the speed by 10 mi/h and traveled for 1 1/2 hours more. How far did the car go? (Express the answer in terms of r.)

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Question 1063305: A car traveled for 1/2 hour at r mi/h then increased the speed by 10 mi/h and traveled for 1 1/2 hours more. How far did the car go? (Express the answer in terms of r.)
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
                   RATE             TIME            DISTANCE

First Part          r                1%2F2

Second Part        r+10             1%261%2F2

Total


RULE: RT=D relates rate R, time T, distance D.


Fill-in the missing parts.
                   RATE             TIME            DISTANCE

First Part          r                1%2F2           r%2F2

Second Part        r+10             1%261%2F2         %28r%2B10%29%283%2F2%29

Total                                             highlight%28r%2F2%2B%28r%2B10%29%283%2F2%29%29


Simplify the expression for the total distance.

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

A car traveled for 1/2 hour at r mi/h then increased the speed by 10 mi/h and traveled for 1 1/2 hours more. How far did the car go? (Express the answer in terms of r.) 
Distance traveled on 1st leg: matrix%281%2C5%2C+%281%2F2%29+%2A+r%2C+or%2C+r%2F2%2C+or%2C+.5r%29

Distance traveled on 2nd leg: 

Total distance traveled: