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zubka84 [21]
3 years ago
9

What ordered pair is a solution to y = x + 5 and x - 5y = -9? I also need to show the work.

Mathematics
1 answer:
Margarita [4]3 years ago
3 0

Answer:

(- 4, 1 )

Step-by-step explanation:

Given the 2 equations

y = x + 5 → (1)

x - 5y = - 9 → (2)

Substitute y = x + 5 into (2)

x - 5(x + 5) = - 9 ← distribute and simplify left side

x - 5x - 25 = - 9

- 4x - 25 = - 9 ( add 25 to both sides )

- 4x = 16 ( divide both sides by - 4 )

x = - 4

Substitute x = - 4 into either of the 2 equations and evaluate for y

Substituting into (1)

y = - 4 + 5 = 1

Solution is (- 4, 1 )

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Answer:

x = 17

Step-by-step explanation:

1) Make the bases the same then rewrite.

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2) Since the bases are the same, set the exponents equal to each other.

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3 years ago
Find 3x2 − y3 − y3 − z if x = 3, y = −2, and z = −5.
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Simply plug in all the values :)

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4 years ago
Consumer products are required by law to contain at least as much as the amount printed on the package. For example, a bag of po
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Answer:

The average bag weight must be used to achieve at least 99 percent of the bags having 10 or more ounces in the bag=9.802

Step-by-step explanation:

We are given that

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