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Blababa [14]
3 years ago
6

Solve by elimination -8x+8y=19-4x+4y=8

Mathematics
1 answer:
Harrizon [31]3 years ago
6 0

Answer: the first one :x=y+ −19 /8

the second one:  x=y−2

Step-by-step explanation:

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The mean and standard deviation of Y is $6.56 and $2.77 respectively.

Step-by-step explanation:

Consider the provided information.

Let Y represent their profit on a randomly selected pizza with this promotion.

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Therefore, Y=\text{Profit}-\$2

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So the mean will be reduced by 2.

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If we add or subtract any constant number from a given distribution, then the mean is changed by the same number(i.e constant number) but the standard deviation will remain the same.

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3 0
3 years ago
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Answer:


Step-by-step explanation:

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