Can someone explain how to do this?

12°

Step-by-step explanation:

The two shaded angles are alternate-interior angles

(Either side of the transversal line, and inside both parallel lines, AB||CD)

10x + 5 = 12x - 19

10x + 24 = 12x

24 = 2x

x = 12

If my answer is incorrect, pls correct me!

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-Chetan K

x=12

Step-by-step explanation:

You set 10x+5 equal to 12x-19. then you solve like a regular equation to get x

3 days of the week.

Step-by-step explanation:

Well they removed my answer even though it was correct.

Monday - Friday = 5 days. If you divided 40 by 100 you get .40 which is forty percent in decimal form. 5 * .40 = 2 days.

Weekend is 2 days. If you divide 50 by 100 you .50 which is fifty percent in decimal form. 2 * .50 = 1 day.

Thus he babysat on 3 days of the week.