For this case, the first thing we must do is define variables.
x: amount of time Miguel uses to complete the task.
y: amount of time Maria uses to complete the task.
We write the system of equations:
x + y = 60
y = (1/2) x
Solving the system we have:
x = 40 minutes
y = 20 minutes
Answer:
it take her to wash them by herself about:
y = 20 minutes
For the second one 1 mph equals 1.6 km so i’m pretty sure it would be all of them
It’s 50/50 hope this helps
The sum will be x+y because their ages are variables.
