Answer:

Step-by-step explanation:
Answer:
-140
Step-by-step explanation:
Are thoses X's multiplication
X= — 1
—
15
This may be the answer
Answer:
Max exercises 13 hours a week, and Sasha 7.
Step-by-step explanation:
To find the number of hours each of them exercises during the week, we solve the system of equations.
In the second equation:

Replacing in the first equation:





So Sasha exercises 7 hours per week.
Max:



Max exercises 13 hours a week.
Not a solution I believe.