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NeTakaya
3 years ago
10

Explain your answer !! Have a nice day Will give braisnlt

Mathematics
1 answer:
liubo4ka [24]3 years ago
8 0

Answer:

x=3

y=-4

Step-by-step explanation:

4x+5y=-8 ----------- (1)

-4x-4y=4 -----------(2)

Adding equation (1) and (2)

4x+5y-4x-4y=-8+4

y=-4

Substitute y=-4 in equation (1) or (2)

4x+5(-4)=-8

4x-20=-8\\4x=-8+20\\4x=12\\x=3

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Answer:

The correct options are :

b. 5

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Step-by-step explanation:

The question is incomplete. The missing part is :

'' Which of these values will prove Sherry's claim is false :

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One way to prove that Sherry's claim is false is finding one odd number greater than 1 that when we replace it in the denominator of the expression \frac{1}{x} the result isn't equivalent to a repeating decimal.

Let's analyze each option :

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3 is an odd number greater than 1 ⇒ If we replace in the expression \frac{1}{x} ⇒

\frac{1}{3}  ≅ 0.3333 (repeating decimal)

The option a. 3 won't prove that Sherry's claim is false.

  • b. 5

5 is an odd number greater than 1 ⇒ If we replace in the expression \frac{1}{x} ⇒

\frac{1}{5}=0.2

The result isn't a repeating decimal.

The option b. 5 will prove that Sherry's claim is false.

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7 is an odd number greater than 1 ⇒ If we replace in the expression \frac{1}{x} ⇒

\frac{1}{7} ≅ 0.1428 (repeating decimal)

The option c. 7 won't prove that Sherry's claim is false.

  • d. 11

11 is an odd number greater than 1 ⇒ If we replace in the expression \frac{1}{x} ⇒

\frac{1}{11} ≅ 0.0909 (repeating decimal)

The option d. 11 won't prove that Sherry's claim is false.

  • e. 25

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\frac{1}{25} ≅ 0.04

The result isn't a repeating decimal

The option e. 25 will prove that Sherry's claim is false.

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