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WARRIOR [948]
2 years ago
7

Solve the system. 3x + 4y = 7 2x-y=1 What does x and y equal

Mathematics
1 answer:
emmainna [20.7K]2 years ago
5 0

Answer:

x=1 y=1

Step-by-step explanation:

Let's use the elimination method.
3x+4y=7
2x-y = 1 (multiply both sides by 4)
8x-4y=4
3x+4y=7

(add both equations together)
11x=11
x=1
Plug x=1 into either of the equations
2(1) - y=1
2-y=1
2=1+y
y=1

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13,822 to one significant figure is 10,000

623 to one significant figure is 600

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3 years ago
Expanding polynomial functions using binomial theorem or pascals triangle
konstantin123 [22]

Answer:

The formula for Pascal's Triangle comes from a relationship that you yourself might be able to see in the coefficients below.

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3 years ago
If f(x) = 2(3x) + 1, what is the value of f(2)?
Over [174]
F(2)=2(3*2)+1
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4 0
3 years ago
(12x5+3x25)-8<br><br> 12x5=60<br> 3x25=75<br> 60+75=135<br> 135-8=127
lions [1.4K]

Answer:

127

Step-by-step explanation:

4 0
3 years ago
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I'm not sure how to do this! 50 points?
Rus_ich [418]

Answer:

MOP=33

Step-by-step explanation:

MOP + MON = NOP

Substitute what we know

MOP = 3x-3

MON = 4x+9  

NOP = 90   right angle

3x-3+4x+9 = 90

Combine like terms

7x+6 =90

Subtract 6 from each side

7x+6-6=90-6

7x = 84

Divide each side by 7

7x/7 = 84/7

x =12

We need to find MOP

MOP = 3x-3

        =3(12)-3

         36-3

        33

6 0
3 years ago
Read 2 more answers
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