Question

Samira ran 3 more miles than twice the number of miles Ada ran.

Which statement makes this comparison using the correct variable expression?

A. If Ada ran m miles, then Samira ran m/2 + 3 miles.

B. If Ada ran m miles, then Samira ran 3m + 2 ⁢ miles.

C. If Ada ran m miles, then Samira ran 2m + 3 ⁢ miles.

D. If Ada ran m miles, then Samira ran 2 (3) +m ⁢ miles.

Answer 1

'twice the number of miles Ada ran' = 2 × Ada
'three more miles than twice the number of miles Ada ran' = [2 × Ada] + 3

Let the number of miles Ada ran be 'm'
The expression is 2m+3

Correct answer: C