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Annette [7]
3 years ago
15

2x-y=-63x-4y=-4Solve using elimination and then substitution

Mathematics
1 answer:
Alinara [238K]3 years ago
6 0
Okay, so first you are going to decide whether to solve for x or solve for y. I am going to solve for x. In order to do so, you must get x by itself.
2x-y=-6
2x=y-6[ [tex]3x-4y=-4
3x=4y-4 \\ x= \frac{4y-4}{3}
The next step is to set both equations equal to each other in order to find y.
\frac{y-\frac{y-6}{2}= \frac{4y-4}{3} \\ 3(y-6)=2(4y-4) \\ 3y-18=8y-8 \\ -10=5y \\ y=-26}{2} [/tex]

So now you know that y=-2. The next part is substitution. All you have to do is pick on of the equations and plug in the y value to get the x value.

So your answer to the question is (-4,-2). I hope I've helped you understand how to solve these types of problems. If you have any questions, don't hesitate to ask.

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52 is what percent of 260
Nataly_w [17]
"is" means =
"what percent" can represent x
"of" is multiplying

so 52 = 260x
so divide 260 by both sides so
x = 52/260 = 0.2
and 0.2 = 20%
3 0
4 years ago
a touchdown in football counts for 6 points if n stands for the number of touchdowns, which equation represents how many points
irga5000 [103]

Answer:

6n

Step-by-step explanation:

7 0
3 years ago
The formula for the volume of a cylinder is V=πr2h. The cylinder to the right has an exact volume of 480π cubic meters. Find its
olya-2409 [2.1K]

Answer:

240/r = h

Step-by-step explanation:

480π = πr2h              Write out the equation

480 = r2h                   Cancel out π on both sides

240 = rh                     Divide by 2 on both sides

240/r = h                    Divide by r to isolate h and get your answer

4 0
3 years ago
Read 2 more answers
Fill in the blank using a term found in the vocabulary list. The ratio of the value of a subtotal to the value of the total is c
lina2011 [118]

Answer:

Relative frequency

Step-by-step explanation:

5 0
2 years ago
Which quotient will be negative?<br><br><br> 24 ÷ 6<br> -35 ÷ 7<br> -54 ÷ (-6)<br> 3 ÷ (-1)
anastassius [24]

Answer:

-35/7

3/-1

Step-by-step explanation:

If you divide a positive number by a positive number

the outcome will be positive

If you divide a positive number by a negative number the outcome will be negative

If you divide a negative number by a negative number the outcome will be positive

If you have any questions do not hesitate to ask

:)

8 0
3 years ago
Read 2 more answers
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