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Vinvika [58]
3 years ago
13

The sum of the equations -8x - 2y = 54 and 4x + 10y = 10 is an equation in one variable.

Mathematics
1 answer:
allochka39001 [22]3 years ago
5 0
Multiplying first equation by .5:
A) -4x -y = 27   then adding equation B)
B) 4x + 10y = 10
9y = 37
y = <span> <span> <span> 4.1111111111 </span> </span> </span>

x =
-4x - <span> <span> <span> 4.1111111111 </span> </span> </span> = 27
-4x = <span>31.1111111111
x = </span> <span> <span> <span> -7.7777777778 </span> </span> </span>


<span><span> </span> </span>


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Serjik [45]
I think that equals 16777216
3 0
3 years ago
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Collins is working.......
lesya [120]
Let n represent the amount Colin earned on Sunday.

On Sat. he earned n/2; on Sun. he earned n; and on Friday he earned (1/2)(n/2).

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Colin earned n/2, or $20, on Saturday; n, or $40, on Sunday; and n/4, or $10, on Friday.

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4 0
4 years ago
Given g ( x ) = 2 x + 3 , solve for x when g(x)=3.
padilas [110]

Answer:

x = 0

Step by step explanation:

g ( x ) = 2x + 3

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<em>Hope that helped :)</em>

8 0
3 years ago
Help me? Giving brainliest
son4ous [18]

Answer:

31

Step-by-step explanation:

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8 0
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If c-d=7 and c=3-8i what is d<br> a) -4+8i<br> b)-4-8i<br> c)4+8i<br> d)4-8i
Zigmanuir [339]

Answer:

Step-by-step explanation:

c - d = 7

c = 3 - 8i            Substitute into the top equation

3 - 8i - d = 7      Subtract 3 from both sides

- 8i - d = 7 - 3    Combine

-8i - d =4            Add 8i to both sides

-d = 4 + 8i           Multiply through by -1

-1*-d = -4 - 8i

d = - 4 - 8i

Looks like B is the answer.

6 0
3 years ago
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