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cupoosta [38]
2 years ago
7

Helpppp!!! Plzzzzzzzz

Mathematics
2 answers:
mario62 [17]2 years ago
8 0

Answer:

32.25

Step-by-step explanation:

You take 5, and multiply times 13. this gets you 65. Divide by two. 32.25. boom

Tamiku [17]2 years ago
6 0

Answer:

x=8

Step-by-step explanation:

180-13+5

180-172

8

X=8

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Only using 1 2 3 4, find a solution that equals 18, 19, 20, and 21
adoni [48]

Answer:

See below, there may be more than one answer

Step-by-step explanation:

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2 years ago
Select the correct answer from each drop-down menu. A system of equations and its solution are given system A x-y=7 -3x+9y=-39 s
galina1969 [7]

Answer:

Step-by-step explanation:

x-y=7

-3x+9y=-39

Divide the second equation by 3

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Add this to the first equation

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----------------------

0x +2y = -6

Divide by 2

2y/2 = -6/2

y = -3

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x-y = 7

x -(-3) = 7

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Subtract 3 from each side

x = 4

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Or by substitution

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solve for x

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Substitute y+7 in for x

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Distribute

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2 years ago
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