Question

Camille has a goal of hiking more than 350 miles this year. She has already hiked 71 miles and now plans to hike 9 miles each day. The inequality 9 + 71 > 350 represents this situation. For how many days, d, does Camille need to hike to reach her goal?

A. 7
B. 14
C. 25
D. 31

Answer 1

Option D is correct answer. Camille needs to hike for 31 days to reach her goal.

Step-by-step explanation:

To find out how many days, d, Camille needs to hike to reach her goal, we can solve the inequality 9 + 71 > 350.

1. First, subtract 71 from both sides to isolate d on one side of the inequality: 9 + 71 - 71 > 350 - 71.
2. This simplifies to 9 > 279.
3. Divide both sides of the inequality by 9 to solve for d: 9/9 > 279/9.
4. This simplifies to 1 > 31.

Therefore, Option D is correct answer. Camille needs to hike for 31 days to reach her goal.