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3 years ago

2x + 3y = 26 3x + 5y = 40find x and y I will give brainliest

Mathematics

1 answer:

Yuki888 [10]3 years ago

7 0

Answer:

x = 10 and y = 2

Step-by-step explanation:

multiply first equation by 5 and 2nd equation by 3 then subtract equation 1 and 2, we get,

10x+15y= 130

9x+15y=120

( -) (-) (-)

x= 10

substituting the value of x in equation 1 we get

2x + 3y = 26

2*10 + 3y = 26

3y = 26-20

y =6/3

y= 2.i hope this helps

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3 years ago

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x= 0

Step-by-step explanation:

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3 years ago

Find the coordinates of the midpoint of CM with endpoints C(1, -6) and M(7,5).

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Step-by-step explanation:

We know that the coordinates of the midpoint(x,y) of line joining A(a,b) and B(c,d) is given by :-

$(x,y)=(\dfrac{a+c}{2},\dfrac{b+d}{2})$ .....(i)

Given : The coordinates of endpoints of CM are C(1, -6) and M(7,5)

Then , by using (i) , the coordinates of the midpoint of CM would be :-

$(\dfrac{1+7}{2},\dfrac{-6+5}{2})\\\\=(\dfrac{8}{2},\dfrac{-1}{2})\\\\=(4,-\dfrac{1}{2})$

Hence, the coordinates of the midpoint of CM with endpoints C(1, -6) and M(7,5) are $(4,-\dfrac{1}{2})$ .

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