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Ber [7]
3 years ago
8

Please help due soon

Mathematics
2 answers:
torisob [31]3 years ago
6 0

Answer:

(- 4, - 25 )

Step-by-step explanation:

Given the 2 equations

y = 7x + 3 → (1)

9x - 2y = 14 → (2)

Substitute y = 7x + 3 into (2)

9x - 2(7x + 3) = 14 ← distribute and simplify left side

9x - 14x - 6 = 14

- 5x - 6 = 14 ( add 6 to both sides )

- 5x = 20 ( divide both sides by - 5 )

x = - 4

Substitute x = - 4 into (1) for corresponding value of y

y = 7(- 4) + 3 = - 28 + 3 = - 25

solution is (- 4, - 25 )

Iteru [2.4K]3 years ago
3 0

Answer:

x = -4

y = -25

Step-by-step explanation:

Since one of the equations is already set with one variable as the subject ( y = 7x + 3) substitute that into the one below it:

9x - 2y = 14

9x - 2(7x + 3) = 14

9x - 14x - 6 = 14

-5x = 20

x = -4

Substitute this into one of the equations and solve for the other variable:

y = 7x + 3

y = 7(-4) + 3)

y = -28 + 3

y = -25

hope this helps!

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Answer:

She made 792 dollars that week. I'm assuming it is just asking for the yearly commission she made. That would be 41,184 dollars a year.

Step-by-step explanation:

7200 x 0.11 = 792 Weekly

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6 0
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Slope passing through the points of (3,-3) and (2,-5)
umka2103 [35]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
If anyone knows this I will give them brainiest
statuscvo [17]

Answer:

x = 12

m(QS) = 52°

m(PD) = 152°

Step-by-step explanation:

Recall: Angle formed by two secants outside a circle = ½(the difference of the intercepted arcs)

Thus:

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✔️m(PD) = 12x + 8 = 12(12) + 8 = 152°

3 0
3 years ago
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IgorC [24]
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