Jonas jogged up the hill at an average rate of 112 of a mile per minute and then walked down the hill at an average rate of 116 of a mile per minute. The round trip took him 42 minutes. What is the missing value in the table that represents the distance of the trip down the hill? Rate (mi/min) Time (min) Distance (mi) Up the Hill 1 twelfth x 1 twelfth x Down the Hill 1 sixteenth 42 minus x ?
Answer
A
1 sixteenth x
B
42 minus 1 sixteenth x
C
42 sixteenths minus x
D
1 sixteenth times open paren 42 minus x close paren