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ruslelena [56]
3 years ago
10

Miguel and Maria are washing the windows in their home. Together, they can complete the task in 1 hours. If Maria can wash windo

ws twice as fast as Miguel, how many minutes would it take her to wash them by herself? In your answer, include the equation you used to solve the problem.
Mathematics
2 answers:
Talja [164]3 years ago
6 0

Let's correct what the person above said. 1 and a half hour = 90 minutes.

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 = 90

y = (1/2) x

Solving the system we have:

x = 60 minutes

y = 30 minutes

(Verify:)

30 + 60 = 90

90 = 90 (correct)

Answer:

it take her to wash them by herself about:

y = 30 minutes

Orlov [11]3 years ago
5 0
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
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Step-by-step explanation:

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