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VLD [36.1K]
3 years ago
13

What can you multiply to eliminate a variable?

Mathematics
1 answer:
AlladinOne [14]3 years ago
7 0

Answer:

A. First equation by -2

Step-by-step explanation:

if you multiply the first equation by -2, the -4y cancels 4y

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X=3y-4<br> 2x-y=7<br> use substitution method. pls explain :)
Nesterboy [21]

Answer:

the sustitucion metod is easy x=5  y=3

Step-by-step explanation:

x-3y=-4 (-2)

2x-y=7 (1)

-2x+6y=8

2x-y=7

5y=15

y=3

2x-3=7

2x=10

x=5

4 0
3 years ago
Read 2 more answers
3/5 rational number on a number line
xxTIMURxx [149]

Answer:

3/5 is a rational number. It is a fraction that is made from two integers - 3 and 5.

Happy learning,

Applepi101

Appleπ101

6 0
3 years ago
I was at the store and saw two sizes of avocados being sold. The regular size sold for $0.79 each. For what prices would the lar
Anon25 [30]

Answer:

the price on the larger avocado maybe a little more but at the same time it's better because of the fact yes you're paying a little more but you get a little more than you would with the smaller avocados

3 0
4 years ago
This rectangle represents the base of a rectangular prism. The height of the rectangular prism is 13 ft.
uranmaximum [27]

Answer:

First I would suggest to use calculator soup.

Step-by-step explanation:

To find the volume of a rectangular prism, we multiply the length of the prism by the width of the prism by the height of the prism.

4 0
3 years ago
Read 2 more answers
A researcher asks participants to estimate the calories they consume in a meal. The researcher records the following estimates:
aleksley [76]

Answer:

Increase

Step-by-step explanation:

The researcher records the following estimates: 450, 426, 310, 500, and 220.

The mean of these estimates is derived below.

Mean = (450+426+310+500+220)/5

=1906/5=381.2

If the researcher removes the estimate of 220.

The mean of the other numbers will be:

Mean =(450+426+310+500)/4

=1686/4=421.5

By comparison of the two mean, we can see that the value of the mean will increase.

3 0
3 years ago
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