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horsena [70]
3 years ago
5

What is the solution to the system of equations ? 4x-5y=-17 x+6y=61

Mathematics
1 answer:
HACTEHA [7]3 years ago
7 0

I went ahead and rewrote x+6y=61 to x=-6y+61 to get x by itself.

I then plugged that into to the first equation to get:

4(-6y+61)-5y=-17

I factored to get:

-24y+244-5y=-17

I combined like terms

-29y=-261

I then divided both sides by -29 to get y by itself and I got y=9 which is A.

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Simora [160]

Answer:

Tax is  C 4.12

Tip is  E 15.00

total =94.10

Step-by-step explanation:

Tax = bill * tax rate

      = 74.98 * 5.5%

      = 74.98 * .055

      = 4.1239

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7 0
2 years ago
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garri49 [273]

Answer:

  • 42 seats

Step-by-step explanation:

This represents an arithmetic progression with the first term of a = 15 and common difference of d = 3.

<u>The tenth row is the 10th term:</u>

  • aₙ = a + (n - 1)d

<u>The row 10 has:</u>

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