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andrey2020 [161]
3 years ago
11

3x – 4y = 31 y = -2x + 6

Mathematics
1 answer:
Hitman42 [59]3 years ago
8 0

Answer:

x = 5

Step-by-step explanation:

3x – 4y = 31

y = -2x + 6

Plug in Y

3x – 4(-2x + 6) = 31

Distribute

3x +8x-24= 31

Add like terms

11x - 24 = 31

Add 24 on both sides

11x = 55

Divide both sides by 11

x = 5

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Answer:

n =2

Step-by-step explanation:

Compound interest:

The compound interest formula is given by:

A(t) = P(1 + \frac{r}{n})^{nt}

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

In this question:

The money is compounded every 6 months.

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3 years ago
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5 0
2 years ago
What is the length of a segment in the complex plane with endpoints at 4 + 2i and 7 – 2i?
ira [324]

Answer:

5

Step-by-step explanation:

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\sqrt{(4-7)^2+(2-(-2))^2}=\sqrt{(-3)^2+4^2}=\sqrt{9+16}=\sqrt{25}=5.

6 0
4 years ago
Read 2 more answers
A rope 25 feet long is cut into 3 pieces. The forest piece is 2x feet long, the second piece is 5x feet long, and he third piece
Gnoma [55]
(a) 2x + 5x + 4 = 25 <== ur equation
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(b) first piece = 2x....= 2(3) = 6 ft <=
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8 0
4 years ago
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Masteriza [31]
It would equal 1

Explanation
- keep (keep first fraction the same)
- change (change division to multiplication)
- flip (flip the last fraction)
3 0
3 years ago
Read 2 more answers
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