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Butoxors [25]
3 years ago
12

Solve the system of equations given below.

Mathematics
2 answers:
lbvjy [14]3 years ago
7 0

Answer:

B

Step-by-step explanation:

-5x = y - 5 (1)

-2y = -x - 21 (2)

Change x to the left hand side of equation (2)

x = 2y - 21 (3)

Multiply (1) by 2 times:

-10x = 2y - 10 (4)

Use (4) - (3)

-10x = 2y - 10

- x = 2y - 21

-11x = -10 + 21

-11 x = 11

x = -1

Apply x = -1 in (1)

-5*(-1) = y - 5

5 = y-5

y = 5+5

y = 10

So x = -1

y = 10

Hope this help you :3

Free_Kalibri [48]3 years ago
6 0
Hehe the answer is B (-1,10)
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5 0
3 years ago
Write an equation of the line that passes through (0 0) and (2 6)
fiasKO [112]

Answer:

y = 3x

Step-by-step explanation:

Slope equation:

y2 - y1

--------

x2 - x1

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         6 - 0          6

m = ----------- =   ----- = 3

         2 - 0           2

Your slope is 3.

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Equation:

y = mx + b

Plug in the slope and you get:

y = 3x + b

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Now to find b, you can use either coordinate point. So I will show you both ways :)

<u>(0,0)</u>                                                                     <u>(2,6)</u>

0 = 3(0) + b                                                     6 = 3(2) + b

Multiply 0 and 3                                           Multiply 2 and 3

0 = 0 + b                                                         6 = 6 + b

Subtract 0 to 0                                            Subtract 6 from 6

0 = b                                                                    0 = b

There is no y-intercept

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Your answer: y = 3x

Hope this helped :)

8 0
3 years ago
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Answer:

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Step-by-step explanation:

the area of a kite is (d1 * d2)/2

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4 * 13 = 52

52 / 6 = 26

26 units^2 is your answer

8 0
1 year ago
Read 2 more answers
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nataly862011 [7]

Step-by-step explanation:

Number of students who wore a hat

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6 0
3 years ago
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