Miguel and maria are washing the windows in their home. together, they can complete the task in 1.5 hours. if maria can wash windows 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.

2 hours 15 minutes

2.25 hours.

Step-by-step explanation:

Let Maria's time by herself = x minutes

Let Miguel's time by himself = 2x minutes

You have to be careful how you set this equation up. Start with the right. The 1 represents the Job to be done. It takes 90 minutes.

The left hand side = 1/x which is the amount of time Maria (x) takes to do the job by herself. She doesn't do the job by herself.

Miguel helps her, so the portion he does is represented by 1/2x. Because he's helping, her time is cut back; he's doing some of the work.

1/x + 1/(2x) = 1/90 minutes

(2 + 1)/(2x) = 1/90 minutes

3/(2x) = 1/90 minutes

270 = 2x

x = 135 minutes.

It would take her 135 minutes to do the windows alone. That's 2 hours and 15 minutes.

a. 74 degrees

step-by-step explanation:

because the lines through the side and the box in the corners shows that these are congruent triangles and since they are mirrored the 37 degrees is also mirrored so the answer is 37 * 2 which is 74.

its a trick question

step-by-step explanation:

dogs love water, just turn on the hose and it will run in circles chasing the water all day : )