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Ksivusya [100]
3 years ago
6

Cora bought a package of erasers. There

Mathematics
2 answers:
erastova [34]3 years ago
8 0
If I’m not mistaken, I believe that it is 4:12
svetoff [14.1K]3 years ago
8 0
The answer is 4:12 but the simplified answer is 1:3
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X - 3y = 7<br> 3x + 3y = 9<br><br><br> Please use system of elimination to answer please
yawa3891 [41]
ANSWER:

x=4 and y= -1

Explanation:

Add these equations to eliminate y:
4x=6

Then solve 4x =16 for x:
4x=16

4x/4 = 16/4 (divide both sides by 4)

x=4

Now that we have found x lets plug it back in to solve for y.
Write down an original equation:

x-3y=7

Substitute 4 for x-3y=7:

4-3y=7

-3y+4=7 (simplify both sides of the equation)

-3y+4+ (-4) = 7+ (-4) (add -4 to both sides of the equation)

-3y = 3

-3y/-3 = 3/-3 (Divide both sides by -3)

y= -1


I HOPE THIS HELPS
7 0
3 years ago
Liliana is using dark power crystals to raise an army of zombies. She has 5 55 dark power crystals, and each crystal can raise 1
Vlad [161]

Answer:

56060550

Step-by-step explanation:

555x101010=56060550

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4 0
3 years ago
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Geometry help last question needing help real bad hope u can please help me 35 point plus brainliest
kherson [118]
We notice that the upper trapezoid is symmetric to the lower one & the line of symmetry should be a horizontal line (mirror line) where any point of the upper vertices should be at equal distance (perpendicular) with the related vertices of the lower one from this horizontal line:
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Leni [432]
7/10=.7
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that is the answer
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jek_recluse [69]

Answer:

6

Step-by-step explanation:

y=\frac{1}{2} x+5\\y=\frac{2}{3}x+4\\\frac{1}{2}x+5=\frac{2}[3}x+4\\multiply by 6\\3x+30=4x+24\\4x-3x=30-24\\x=6

6 0
3 years ago
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