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Helen [10]
3 years ago
15

He equations9x-10y=6, 8x-10y=-23, 9x+10y=-16 and 8x+10y=13 are shown on the graph below.

Mathematics
2 answers:
vesna_86 [32]3 years ago
6 0

Answer:

(-2.3,0.5)

Step-by-step explanation:

Take the second equation we have y= (-16-9X)/10

Then, we will subtitute the value of y on the first equation

8X - 10(-16-9X/10)=-23

Because 10 is denominator, it will delate with the numeber 10 that is multipling the -16-9X. Then the equation is

8X-(-16-9X)=-23  

then: 8x+16+9X=-23  So, 17x=-23-16   => X=-2.3

Then we put the value of X in the first equation so

9 (-2.3) -10y=-16 =>  10y=-16+20.7

So, y=0.5

emmasim [6.3K]3 years ago
5 0

Answer:

A (-2.3,0.5)

Step-by-step explanation:

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Answer:

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4 0
3 years ago
Read 2 more answers
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Answer:

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