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Pani-rosa [81]
3 years ago
5

HELP FASTT

Mathematics
2 answers:
mote1985 [20]3 years ago
8 0

Answer:

add 7.6 and x=25.8

Step-by-step explanation:

Morgarella [4.7K]3 years ago
4 0

Answer: division

Step-by-step explanation:

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If 8x−4y=20 and 4x−8y=4, what is the value of x−y?
____ [38]

Answer:

Step-by-step explanation:

Solve the system:

8x−4y=20

4x−8y=4

Reduce the first equation by dividing every term by -2:

-4x + 2y = -10

and then combine this result with the second equation:

4x−8y=4

-4x + 2y = -10

--------------------

      -6y = -6, and so y = 1.  

According to the first equation, if y = 1, then 4x - 8 = 4, or x = 3.

Then x = 3 and y = 1.

So, finally, x - y = 3 - 1 = 2

5 0
2 years ago
A submarine descended 1500 meters below the surface of the water. It then rose 600 meters and then descended 150 meters. What wa
dem82 [27]
Net loss:1050 m

1500-600+150
5 0
3 years ago
Hey i really need help its 11:32 where I am and this assignments due at 12:00<br>please!!!!​
USPshnik [31]
%/100 =is/of
Good equation our teacher taught us and the one you’re looking for put x
7 0
2 years ago
Read 2 more answers
4r^3-3r^2-4r+3 <br> four terms <br> use grouping
matrenka [14]
It’s (4r-3)(r+1)(r-1)
5 0
2 years ago
(1.5 x 10^2) X (2.0 x 10^3) Express your answer in scientific notation and standard form.
zavuch27 [327]

Answer:

3*10^5 or 300,000 cant remember witch one it is

Step-by-step explanation:

1.5*10^2= 150

2*10^3=2,000

150*2000=300,000

3*10^5

8 0
3 years ago
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