kennedyterrell
contestada

the expression 9x represents the number of miles Allison hiked, and 4x+5 represents the number of miles that Adrian hiked in x days. Write an expression to show how many more miles Allison hiked than Adrian.


A. 5x-5

B. -5x+5

C. 5x+5

D. 13x+5

Respuesta :

hoangpm04

Answer:

5x - 5

Step-by-step explanation:

Allison hiked more than Adrian:

Number of miles Allison hiked - Number of miles Adrian hiked

= 9x - (4x + 5)

= 5x - 5

EDITED VERSION AFTER RELISED I'M WRONG :D

Hope this help you :3

mathstudent55

Answer:

5x - 5

Step-by-step explanation:

Allison: 9x

Adrian: 4x - 5

To find the difference, we subtract Adrian's number of miles, 4x + 5, from Allison's number of miles, 9x.

9x - (4x + 5) =

We think of the negative sign to the left of the parentheses as a -1, and we distribute it by multiplying -1 by 4x and multiplying -1 by 5.

= 9x -1(4x + 5)

= 9x - 4x - 5

Now we combine like terms. The only like terms are 9x and -4x.

= 5x - 5

Otras preguntas