The approximate length of a marathon race is 26 miles. The
approximate length of a half-
marathon race is 13 miles. Last
year, a runner ran 1 marathon
and 3 half-marathons. Which
expression represents the total
number of miles the runner ran in
these races?
a. (26 + 1) x (13 + 3)
b. (26 x 1) + (13 x 3)
c. (26 + 13) x (1 + 3)
d. (26 x 13) + (1 x 3)

The answer is letter B

Step-by-step explanation:

We know obviously when you are multiplying (since it is how MANY he ran that we are multiplying to get total distance), you don't add 1 or 3 to the numbers. We also know he did not run the 26 mile course 13 times, so the only answer choice that is feasible and/or even remotely correct would be B.

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x