xvxvxv

Any one ? 

$x (-0.5) x = -20$

$-0.5{x}^{2}=-20$

${x}^{2}=\frac{-20}{-0.5}$

${x}^{2}=40$

$x=\sqrt{40}$

$x= 2\sqrt{10} , x=-2\sqrt{10}$

Are you graduated ? 

thank you melody 

I will. 

$0.85 * 2500 = 2125$

that is amazing ! 

thank's alot CPhill & Alan 

Great !!!! 

I ment circumference by  perimeter 

and I typed  perimeter wrong  

sorry for that 

Omi67 

is it possible to multiply both sides with variable ? i.e ${x}^{2}$

$\frac{2}{5}$

$x(x+3) + 2(x+3)$

$x*x + 3X + 2X + 2*3$

$x^2+3x+2x+6$

$x^2+5x+6$

Hello Melody! 

How are you ? 

Vendor 1: 

Unit price =  $\frac{Total Price}{Total Units} = \frac{25.72}{4} = 6.43 $$

Vendor 2:

Unit price =  $\frac{Total Price}{Total Units} = \frac{19.14}{3} = 6.38$$

$6.38$ < 6.43$$

Therefore, Vendor 1 has the higher unit price 

Any One ! 

Any Help ! 

Thank You .