Question

Jody has already hiked 4 kilometers. The trail is 12 kilometers long. She can hike 2.5 per hour. Which function will help Jody figure out how many more hours, h, she needs to hike?

Answer 1

Let number of hours = h

Given that she can hike 2.5 per hour. So that means distance travelled in "h" hours will be 2.5h

It is also given that Jody has already hiked 4 kilometers.

So total distance travelled by Jody in "h" hours will be (2.5h+4)

Given that trail is 12 kilometers long.

That means Jody has to travel for 12 kilometers. In that case both values will be equal and we get equation:

2.5h+4=12

We were asked only to find the equation not the value of h, so answer will be 2.5h+4=12

Answer 2

2.5h + 4 = 12 <== ur equation
2.5h = 12 - 4
2.5h = 8
h = 8 / 2.5
h = 3.2 hrs