Question

Carrie ran some of the miles and walked some of the miles in a 10-mile race. Each mile she ran took 9 minutes, and each mile she walked took
16 minutes. She finished the race in 120 minutes.
Which system of equations can be used to determine the number of miles Carrie ran, r, and walked, W?
r+9 = 10
ОА.
W + 16 = 120
B.
r = 10w
9r + 16w = 120
OC.
r+w = 10
9r + 16w = 120
D.
r+w = 10
16r + 9w = 120

Answer 1

You can use y=Mx+b or you can use ride over run because all you need to do is find which number you would like to use for your x and y and you can figure it out easy

Answer 2

9514 1404 393

Answer:

  C. r+w = 10; 9r + 16w = 120

Step-by-step explanation:

The problem statement describes two relationships. Each of these gives rise to an equation.

  total miles: r + w = 10

  total time: 9r +16w = 120