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mariarad [96]
3 years ago
10

PLEASE HELP DUE IN 3 HOUR

Mathematics
1 answer:
ra1l [238]3 years ago
5 0

Which number sentence shows the commutative property of addition?

7 + 6 = 6 + 7

What is missing for the following quantity to be true? 5x + 7y + 9a = __ + 5x + 9a

7y

Which number sentence shows the associative property of addition? Choose all that apply.

(3 + 9) + 5 = 3 + (9 + 5)

12 + (3 + 9) = (12 + 3) + 9

Use the distributive property to decide which of the following is equivalent to 2(3 + 5x)? Select all that apply.

2(3) + 2(5x)

6 + 10x

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Find the value of x and y. Triangle MNP = triangle TUS
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Answer:

x = 32, y = 51

Step-by-step explanation:

Since the triangles are congruent then corresponding sides and angles are congruent, that is

∠ U = ∠ N

∠ N = 180° - (142 + 24)° = 180° - 166° = 14° , then

2x - 50 = 14 ( add 50 to both sides )

2x = 64 ( divide both sides by 2 )

x = 32

and

NP = US

2x - y = 13

2(32) - y = 13

64 - y = 13 ( subtract 64 from both sides )

- y = - 51 ( multiply both sides by - 1 )

y = 51

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