Y=5x+4 and 3x+2y=20 by using elimination

Step-by-step explanation:

 y = 5x + 4

-5x + y = 4 ----------------------(i)

3x + 2y = 20 --------------------(ii)

Multiply equation (i) by (-2)

(i)* (-2)     10x - 2y = -8

(ii)            3x   + 2y = 20    { Now add this two equations}

              13x           = 12      { -2y and 2y got eliminated}

                          x = 12/13

Plug in value of x in (i)

-5*12/13  + y = 4

-60/13 + y = 4

y = 4 + 60/13

if the pizza is divided equally into 2 equal halves then you would get

πr^2/2

where r is the radius of the pizza.

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the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation: