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Hatshy [7]
2 years ago
13

Solve the following system of equations.

Mathematics
2 answers:
DIA [1.3K]2 years ago
7 0
2x+y-3=0,x-2y=1 okay that's the answer good luck
Elanso [62]2 years ago
5 0
Subtract y from both sides
now we have
2x = -y + 3
divide both sides by 3
x= -y/2 + 3/2
the other x equals 2y +1, set these equal to eachother

2y + 1 = -y/2 + 3/2

add y/2 to both sides

2.5y + 1 = 3/2

subtract 1 from both sides

2.5y = 0.5

divide both sides by 2.5

y=0.2

plug in 0.2 for y in an original equation

x = 2(0.2) + 1

solve

x = 1.4

ANSWER:
x= 1.4
y= 0.2
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A line passes through the points (1, 4) and (3, –4). Which is the equation of the line?
Vikentia [17]
Y = -4x + 8

First you need to find the slope of the line.

The slope formula is m = y2-y1/x2-x1

If you plugged in the points it would be m = -4-4/3-1

so m = -8/2 = -4

so the slope is -4

now we need to write the equation of the line

for this u use point slope form

the formula for that is y-y2=m(x-x1)

so if you plug it in it would be:

y-(-4)=-4(x-3)

now you solve

y+4=-4x+12

y+4-4= -4x+12-4

y = -4x + 8

and now you have the slope of the line

I hope this helps! :)
5 0
3 years ago
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oee [108]

Answer:

10 if distance from origin

Step-by-step explanation:

4 0
2 years ago
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seraphim [82]
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7 0
3 years ago
The top one I need help with
brilliants [131]
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You have a 40% coupon, what will the price be of shoes that cost 45
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Step-by-step explanation:

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