Question

If a trip to Andover is 866 miles, and your car avg miles per gallon is 13.6. With the average cost of gas being 4$, how much would it cost?

Answer 1

`254 (12)/(17)` or approximately 254.71

Explanation:

First, you need to find out how many gallons it will take to travel 866 miles. Because the car's avg miles/gallon is 13.6, you divide 866 by 13.6. However, this gets you an irrational number. To avoid this, make 13.6 into a fraction. Now divide 866 by
`13 (3)/(5)`. This becomes 866 ÷
`(68)/(5)`. Convert this into a multiplication problem by converting
`(68)/(5)` into its reciprocal. This gets you 866 ×
`(5)/(68)`. This gets you
`(2165)/(34)`. Now that you have the amount of gallons it will take to get to your destination, multiply it by 4.
`(2165)/(34)` ×
`4`
`= (4330)/(17)`. This becomes
`254 (12)/(17)` or approximately 254.71.