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arlik [135]
3 years ago
10

HELP PLEASE

Mathematics
1 answer:
oee [108]3 years ago
6 0
Using a graph tool

case 1) 
2x-y=-13
y=x+9

the solution is the point (-4,5)
see the attached figure N 1

case 2)
y=3x-7
y=2x-5

the solution is the point (2,-1)
see the attached figure N 2

case 3)
3x+2y=10
6x-y=10

the solution is the point (2,2)
see the attached figure N 3

case 4)
y=6
x=-5
the solution is the point (-5,6)
see the attached figure N 4

case 5)
4x-3y=5
3x+2y=-9
the solution is the point (-1,-3)


case 6)
x+y=7
x-y=-1
the solution is the point (3,4)

the answer in the attached figure



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9514 1404 393

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  4/25

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What is 2.161616 as a fraction?
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repeating fraction, nice

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solve the repeating part
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2 places repeat, multiply x by 10^2 or 100
100x=16.161616

now subtract x from taht
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the repeats cancel and we get
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so
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2+16/99 is the fraction
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2.161616=214/99
8 0
3 years ago
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