B. 4m
This is the only expression that would result in the sum of m + 3m, which is the correct expression for the total number of miles Jennifer and Callie have run altogether.
Jennifer and Callie are training for a marathon. Jennifer has run m miles, and Callie has run 3 times as many as Jennifer. The expression shows how many miles they have run altogether.
m + 3m
Which of the following expressions could be used to get the same results?
A.
m + 4
B.
4m
C.
4m2
D.
m + 3
1 answer