A truck driver drives 10 miles west from company headquarters when he realizes he forgot to make one of the stops on his route. He drives 7 miles east on the same road to go back and make the stop. Which expression can be used to find how far the truck driver is from company headquarters?

+10 + -7

-7 + -10

+10 + +7

-7 - +10

Question

A truck driver drives 10 miles west from company headquarters when he realizes he forgot to make one of the stops on his route. He drives 7 miles east on the same road to go back and make the stop. Which expression can be used to find how far the truck driver is from company headquarters?

 +10 + -7

 -7 + -10

 +10 + +7

 -7 - +10

anonymous · Answer

1) +10+-7 because going west would mean that he would be +10 miles away from the the company and if he decided to go east (backtrack on his original route) 7 miles he would be going -7 miles so you add those two together and get +3 
hope that helps!!