Question

I need help for a project! What would the variables be defined as!?

Marvin burned 8 calories per minute on a treadmill and 10 calories
per minute on an elliptical trainer for a total of 560 calories in 60
minutes. Write and solve a system of linear equations to determine
how many minutes he spent on each machine.

Answer 1

2 1/5x * 1 7/10 y * 4 3/5 x 1 7/10 (* 7 4/50)

Finds the answer

10 6/50x * 7 41/50y (* 7/4/50) = 56

79 13/100 (* 7 4/50) = 56

560 = 56 (10x)

x = 5 6/10

7 (y) = 56 (7y)

8 = 56/7 (y)

y = 8

x = 5 6/10

6/10 of 560 = 336

336/60 = x

336/60 = 5 6/10