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Ilia_Sergeevich [38]
3 years ago
14

How about this 8 AND 9

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
4 0
The follow answers are (D) and (T) will Landon P how this helps
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Find the area of the shaded region. Round your answer to the nearest TENTH.​
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10inchs

Step-by-step explanation:

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Please help me I just kinda got stuck on this one Thank you so much
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The sum of twice a number and five is 13. Find the number.
Eduardwww [97]

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let the number be x

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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

-x +3y = -13

Add this to the first equation

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-x +3y = -13

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

0x +2y = -6

Divide by 2

2y/2 = -6/2

y = -3

Now find x

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x -(-3) = 7

x+3 = 7

Subtract 3 from each side

x = 4

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Or by substitution

x-y=7  

solve for x

x = 7+y

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Substitute y+7 in for x

-3(7+y) +9y = -39

Distribute

-21 -3y +9y = -39

Combine like terms

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4 0
3 years ago
A- 7 = 3(+2) What is a
Marina CMI [18]

Answer:

a = 13

Step-by-step explanation:

Hello!! This is how you do it!!

a - 7 = 3 (2)

a - 7 = 6

+ 7. +7

a = 13

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