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svetlana [45]
3 years ago
12

For homework, Brooke has 15 math problems, 5 social studies problems, and 9 science problems. Use mental math to determine how m

any problems she has for homework. Tell which property you used.Answer Property
Mathematics
1 answer:
koban [17]3 years ago
8 0

Answer:

29 homework problems

Addition Property was used

Step-by-step explanation:

15+5=20+9=29

Addition

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Answer:

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Step-by-step explanation:

No direction or other information about the desired parallelogram is given here, so we drew one arbitrarily. Likewise for the segment cutting it in half. It is convenient to have the bases of the trapezoids be the sides of the parallelogram that are 5 units apart.

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The sum of the trapezoid base lengths is necessarily the length of the base of the parallelogram, so the area of the trapezoid is necessarily 1/2 the area of the parallelogram. (The area is necessarily half the area of the parallelogram also because the problem has us divide the parallelogram into two identical parts.)

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Answer:

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Step-by-step explanation:

use alternate angles

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