Question

Emanuel was charged $32 for a 14 2/9 km taxi ride. What was the cost per kilometer?

Answer 1

32 / (14 2/9) =
32 / (128/9) =
32 * 9 / 128 =
288 / 128 =
$ 2.25 per km

Answer 2

$2.25 per kilometer

Explanation:

Here we are asked for the unit rate, dollar per kilometer, that is
`\$/km`.

If Emanuel was charged $32 we need to divided that amount by the kilometers traveled, so:

`x=(\$32)/((14+(2)/(9))km)\\x=(\$32)/((128)/(9)km)\\\\x= (\$288)/(128km)\\\\x=2.25(\$)/(km)`

So the cost per kilometer traveled is $2.25.