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2 years ago

Answer the question no. 18

Mathematics

2 answers:

mariarad [96]2 years ago

7 0

Here, ax + 3y = 25
Now, It is given, y =1, so
ax + 3(1) = 25
ax = 25 - 3
x = 22/a

In short, Your Answer would be 22 / a

Hope this helps!

gayaneshka [121]2 years ago

3 0

X = 22 / a ( where a is calculated in a point above?) :)

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Answer:

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Step-by-step explanation:

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For $x=-2, y=-4$ ------> $k=-4/-2=2$

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This table has different values of k

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Table B

For $x=-2, y=-4$ ------> $k=-4/-2=2$

For $x=-1, y=-2$ ------> $k=-2/-1=2$

For $x=1, y=3$ ------> $k=3/1=3$

This table has different values of k

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Table C

For $x=-2, y=-4$ ------> $k=-4/-2=2$

For $x=-1, y=-2$ ------> $k=-2/-1=2$

For $x=1, y=2$ ------> $k=2/1=2$

For $x=2, y=4$ ------> $k=4/2=2$

This table has the same value of k

therefore

the table C represent a proportional relationship

Table D

For $x=-2, y=-4$ ------> $k=-4/-2=2$

For $x=-1, y=-2$ ------> $k=-2/-1=2$

For $x=1, y=2$ ------> $k=2/1=2$

For $x=2, y=6$ ------> $k=6/2=3$

This table has different values of k

therefore

the table D does not represent a proportional relationship

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