Marta has an easy-pay pass for toll booths in her city. She has $55 remaining after 10 trips through tolls, and $39 after 18 trips through the tolls. How much money is charged per toll? $

1 Answer
Mar 18, 2018

Total $ difference divided by trip difference

#$2# per trip

Explanation:

#$55# left after #10# trips
#$39# left after #18# trips

So she has #$55-$39= $16# less
And that in #18-10=8# trips

So if she paid #$16# for #8# trips, she had to pay

#($16)/8=$2#

#$2# per trip