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Effectus [21]
3 years ago
5

Which is the correct set of equations for this system of equations? I’ll GIVE 30 POINTS

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
3 0

Answer:

how r u suppose to give 30 if it is only for 15

Step-by-step explanation:

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Solve the system 2x+4y=16 5x +3y=19 then find the value of y/x
AURORKA [14]

Answer:

I would change 2x+4y=24 into x=12–2y

To do that, divide both sides by 2 and then subtract 2y on each side.

After that, substitute for x. 3x+2y=19 would become 3(12–2y)+2y=19.

Then solve.

3(12–2y)+2y=19

36–6y+2y=19

-4y+36=19

-4y=-17

y=4.25

Then, substitute y in either equation.

Either this:

3x+2y=19

3x+2(4.25)=19

3x+8.5=19

3x=10.5

x=3.5

Or:

2x+4y=24

2x+4(4.25)=24

2x+17=24

2x=7

x=3.5

Or you could solve it in the equation you created in the beginning:

x=12–2y

x=12–2(4.25)

x=12–8.5

x=3.5

The coordinates where the lines intercept are (3.5, 4.25).

Sorry for the long answer!

4 0
3 years ago
I don’t understand how any help
Alona [7]

Answer:yellow .

Step-by-step explanation: you’re moving over 2 to the right. Right is positive. Down is negative, and since you’re doing 2 to the right, and down 1, we have (2,-1)

5 0
2 years ago
What is the best approximation for the area of a semicircke with a diameter of 11.8 feet? Use 3.14
maxonik [38]

To do this, use this formula=The area is always pie times the radius to the 2nd. But this is for a semicircle so divdie your answer by 2

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3 years ago
Find the area of a parallelogram with a base of 14 m and a height of 5 m.
gulaghasi [49]
Answer would be 70m squared
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A teacher is writing an exam with 60
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20 is the answer your welcome you will get it right don’t worry
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