Question

Marcos drove twice as far as Candice. Together, they drove 66 miles. Which equation can be used to find the number of miles Candice drove?

A. 3x = 66
B. 2x + 1/2 x = 66
C. 3x = 66 + x
D. 3x=66 - x

Answer 1

a

Explanation:

Answer 2

m = miles Marcos drove
c = miles Candice drove

m = 2c
m + c = 66

Plug m=2c into the second equation :

m + c = 66
(2c) + c = 66
3c = 66

Choice A