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3 years ago

4x-(12 divided 3) +2x=20

Mathematics

1 answer:

Savatey [412]3 years ago

3 0

Answer:

Step-by-step explanation:

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Slope is 1/2 and (4,6) is on the line

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Answer:

y-6=1/2(x-4)

Step-by-step explanation:

y-y1=m(x-x1)

y-6=1/2(x-4)

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This was given to me during a summative test and the teacher didn't bother giving me the correction. I just cannot figure it out

Dmitry [639]

Base be y

ATQ

$\\ \sf\longmapsto xy=6050\dots 1$

$\\ \sf\longmapsto 2(x+y)=220\implies x+y=110\dots 2$

Now

$\\ \sf\longmapsto (x+y)^2=x^2+y^2+2xy$

$\\ \sf\longmapsto 110^2-2(6050)=x^2+y^2$

$\\ \sf\longmapsto 12100-12100=x^2+y^2$

$\\ \sf\longmapsto x^2+y^2=0\dots(3)$

From all equations

$\\ \sf\longmapsto (x-y)^2=x^2+y^2-2xy$

$\\ \sf\longmapsto (x-y)^2=0-2(6050)$

$\\ \sf\longmapsto (x-y)^2=-12100$

$\\ \sf\longmapsto (x-y)=110\dots(4)$

Now

Adding 3 and 4

$\\ \sf\longmapsto 2x=220$

$\\ \sf\longmapsto x=110m$

One side won't be covered hence

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3 years ago

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Find the coordinates of the midpoint of the segment given its endpoints P(-3,-7) and Q(3,-5)

stellarik [79]

Answer:

Midpoint....; (0,-6)

Step-by-step explanation:

Midpoint of the segment

= [(sum of x-coordinates) ÷ 2] , [(sum of y-coordinates) ÷ 2]

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Midpoint = ( 0/2 , -12/2 )

Midpoint = (0,-6)

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AysviL [449]

Answer:

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Step-by-step explanation:

total money spent minus cost of soda = price of 2 bags of chips

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2 bags of chips divided by 2 = price for one bag

$2.50 / 2 = $1.25

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The answer is a if it’s not a I’m sorry but I love you

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