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vodka [1.7K]
3 years ago
8

Solve by substitution 2y=x+1 -2x-y=7

Mathematics
1 answer:
qwelly [4]3 years ago
8 0
-2x-y=7
Add 2x to both sides
-y= 2x+7
Multiply both sides by-1
Y= -2x-7



2y=x+1

2(-2x-7)= x+1
-4x -14. =x+1
Add 14 to both sides
-4x=x +15
Subtract x from both sides
-5x=15
X=-3

2y =-3+1
-2y=-2
Y=1

(-3,1)
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(a) See Explanation

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The question says that a lot of households pay low rates, but the percentage of the households in this category is not given. This means that it is impossible to determine the shape of the distribution.

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