Answer: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
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
5-(-8)-4=9
Hope this helps!
Answer:
23.1
Step-by-step explanation:
(4.2)(11)(0.5)
2kg=2000g so do 275/2000 and cancel down to 11/80 :)