Manuel is hiking up a mountain. after 3 hours, he is 2500 feet from the summit. after 5 hours, he is 1300 feet from the summit. what is the height, in feet, of the mountain?

 Height of summit = 4300 ft

Explanation:

 Let the height of summit be h.

 After 3 hours, he is 2500 feet from the summit,

 Height traveled = (h - 2500)

 Time taken = 3 hours

  Speed = (h-2500)/3

 After 5 hours, he is 1300 feet from the summit

  Height traveled = (h - 1300)

  Time taken = 5 hours

  Speed = (h-1300)/5

Here speed is same, so we have

  Height of summit = 4300 ft

your answer is 23/2 - 13.5

step-by-step explanation:

7/2 evaluates to

multiply x and 4.5

multiply x and 1

the x just gets copied along.

the answer is x

x

4.5*x evaluates to 4.5x

multiply 3 and 4.5x

multiply 1 and x

the x just gets copied along.

x

4.5*x*3 evaluates to 13.5x

7/2-4.5*x*3 evaluates to

  + 8 =

the answer is

7/2-4.5*x*3+8 evaluates to