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victus00 [196]
3 years ago
11

Consider the following pair of equations: y = −2x 8 y = x − 1 Explain how you will solve the pair of equations by substitution.

Show all the steps and write the solution in (x, y) form.
Mathematics
2 answers:
NARA [144]3 years ago
8 0
If so y= -2x and 8y=x-1...

solution:

y=-2x \\  \\ 8y=x-1 \Rightarrow \\  \\  8.(-2x)=x-1 \Rightarrow \\  \\  -16x=x-1 \Rightarrow \\  \\  17x=1 \Rightarrow \\  \\  x=\dfrac{1}{17}


givi [52]3 years ago
5 0

Step-by-step explanation:

Consider the following pair of equations: y = −2x 8 y = x − 1 Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.

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Three units to the right of seven is?
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Answer:

10 i think

Step-by-step explanation:

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3 years ago
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(-1) + (-1) + (-1) + (-1) + ... 500 times =<br>(a) 500<br>(b) 1<br>(c) -1<br>(d) -500​
pickupchik [31]

Answer:

D

Step-by-step explanation:

(-1) + (-1) = -2... so 500 times... it would be -500.

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3 years ago
What is y=-1/4x-15 on a graph
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7 0
4 years ago
Bonnie had 1 one-dollar bill, 2 five-dollar bills, and 2 ten-dollar bills in her pocket. She randomly took 3 bills from her pock
Burka [1]

Answer:

There are 5 different outcomes, $30, $21, $20, $16 and $11.

Step-by-step explanation:

Bonnie has a total of 6 bills in her pocket. If she takes 3 random bills, this means that there are 20 different possibilities but the five dollar bills and ten dollar bills are not indistinctive so the number is not 20 for this example.

She can take the 1 dollar bill and the two 5 dollar bills which would make 11 dollars.

She can take the 1 dollar bill and the two 10 dollar bills which would make 21 dollars.

She can take the 1 dollar bill, one 5 dollar bill and one 10 dollar bills which would make 16 dollars.

She can take two 5 dollar bills and one 10 dollar bill which would make 20 dollars.

She can take two 10 dollar bills and one 5 dollar bill which would make 30 dollars.

So there are 5 different outcomes, $30, $21, $20, $16 and $11.

I hope this answer helps.

4 0
4 years ago
Please help I have a D in this class.
maxonik [38]

Answer:

the value of x in terms of b is bx=-13

the value of x when b is 3 is x=-1

7 0
3 years ago
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