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dimulka [17.4K]
3 years ago
15

Solve this system 2x-4y=14 3y+5x=9

Mathematics
1 answer:
anygoal [31]3 years ago
8 0

Answer:

x=3, y=-2

Step-by-step explanation:

If 2x-4y=14, then we know that 2x=14+4y.  This means that x=7+2y.  If we substitute this into the next equation we get: 3y+(35+10y)=9.  This means that we have 35+13y=9.  If we subtract 35 from both sides we get 13y=-26.  This means y=-2. If you subsitute this in the first equation, we have 2x--8=14.  -- means + so you do 2x+8=14.  This means that x=3.

btw this is my first answer so sorry if its bad.

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Need that help.......plz
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For Question Number one
(2+10)²+4=148

Question Number two:
(6+5)×(8-6)=22



5 0
3 years ago
A computer program found that the line y=3x - 52 is the best line of best fit to represent the temperature outside and the amoun
Aliun [14]

Answer:

98

Step-by-step explanation:

given x = 50

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4 0
3 years ago
A company has two large computers. The slower computer can send all the company's email in 55 minutes. The faster computer can c
adelina 88 [10]
You find the rates of each computer on its own...

One does the job in 55 minutes which we can say is 1/55

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6 0
4 years ago
Cheddar cheese cost 4.25 per pound. Which equation best represents y, the cost of x pound of cheddar cheese
tamaranim1 [39]

Answer:

y = 4.25x

Step-by-step explanation:

Cheddar cheese cost 4.25 per pound . This means the cost of cheddar cheese is 4.25 for every pound in weight. Assuming we put a currency to the value we can say 1 pound of cheddar cheese is equals to 4.25 dollars($4.25). Mathematically, it can be represented as

4.25 is the cost for 1 pound of Cheddar cheese

Let the cost of the equation be y as required from the question.

y = cost of the cheddar cheese

x is the weight value in pounds of the Cheddar cheese.

The equation can be best represented as

y = 4.25x

In the equation above if the amount in pounds is 3 pound . the value will be inputted for x and the cost will be gotten which is y.

hope this helps!:)

6 0
3 years ago
Plz answer 9, 10, 11, 12, 13, 15, 16, 17, 18 and 19
Licemer1 [7]
9.
\frac{2}{3}

10.
\frac{3}{16}

11.
\frac{14}{5}

12.
\frac{3}{8}

13.
\frac{3}{5}

15.
\frac{1}{9}

16.
15

17.
\frac{6}{7}

18.
\frac{1}{20}

19.
\frac{36}{49}
7 0
3 years ago
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