Question

During a walkathon, Team A walked a total of 6x+12 miles and Team B walks a total of 4x-7 miles. What is the difference in miles between the two teams?

A) 2x-5
B) 2x+5
C) 2x-19
D) 2x+19

Answer 1

Answer6-4 = 2x, 12+7=19 so it will be 2x+19

Explanation:

Answer 2

Answer: D) 2x+19

Explanation:

Given : During a walkathon,

Total distance traveled by Team A = 6x+12 miles and

Total distance traveled by Team B = 4x-7 miles.

Now, the difference in miles between the two teams = Total distance traveled by Team A - Total distance traveled by Team B

`=6x+12-(4x-7)\\\\=6x+12-4x+7` [∵ (-)(-)=(+)]

`=6x-4x+12+7\\\\= 2x+19`

Hence, the difference in miles between the two teams = 2x+19

Thus , the correct answer is D) 2x+19 .