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Lynna [10]
3 years ago
14

How many solutions does this system have? y=3/4x-5 -3x+4y=-20?

Mathematics
1 answer:
lisov135 [29]3 years ago
8 0

Answer:

infinite

Step-by-step explanation:

If you multiply all factors in the secon eqation by 4, you will get the first eqation.

Therefore for any value of x you can find y, thus having an infinite number of x,y pairs

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What is the rule for Aaliyah’s machine? Try to write the rule as an equation.
Eva8 [605]

Answer:

  f(x) = 2x +1

Step-by-step explanation:

Apparently the ordered pairs are ...

  (x, f(x)) = (1, 3), (2, 5), (3, 7), (4, 9)

We note that as x increases by 1, the value of f(x) increases by 2. The difference between f(x) and 2x is 3-2·1 = 1, so we have ...

  f(x) -2x = 1

  f(x) = 2x +1 . . . . . . add 2x

4 0
3 years ago
it takes 18 3/8 inches of wood to make a frame for a small picture if Ms Jones has 108 inches of wood how many frames can she ma
scZoUnD [109]
It would make 5 complete frames, and about 8/10 of another frame.
108 / 18.375 = 5.8&*)&^&%*$*
I used a calculator.
You could keep adding 18 and 3/8 over and over again until you get right under 108 if you're good at math like me, but most people would have to add 18 and 3/8 separately.

Thanks, and if you liked my answer, please consider giving me the brainliest answer, because I need 5 of them to get to the next level.
6 0
3 years ago
Read 2 more answers
5x+2y=22. -2x+6y=3 What is the X coordinate of the solution. Round to the nearest tenth
just olya [345]
Multiply first example by 3 and subtract by second example, you will get the following:

3*(5x + 2y) = 3*22   =>  3*5x + 3*2y = 66      =>  15x + 6y = 66
now subtraction:
(15x + 6y) - (-2x + 6y) = 66 - 3
15x + 6y + 2x - 6y = 63
15x + 2x + 6y - 6y = 63
17x = 63
x = 63/17 ≈ 3.705..... and as it says to round to the nearest tenth our answer would be: x = 3.7
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3 years ago
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Answer:

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6 0
2 years ago
What is 2/5 +(-3/15)
Morgarella [4.7K]

Answer:

-281.25


Step-by-step explanation:


6 0
3 years ago
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