X=5y.          y=10x+20

 Help please

x = -2.04

y = - 0.408

Step-by-step explanation:

this is a solve by substitution problem. you know what x is from the first equation so you plug that into the second equation and solve for y. then when you know y you can plug y back into any equation to find x.

y=10(5y)+20 (substitute x)

y=50y+20 (subtract 50y from both sides)

-49y=20 (divide each side by -49)

y= -0.408

x=5(-0.408) (plug y in)

x= -2.04

definition: a circle is the  set of all points in a plane that are equidistant  from a given  point  called the center of the circle. we use the symbol ⊙ to represent a circle. the a line segment from the center of the circle to  any point  on the circle is a radius of the circle.

step-by-step explanation:

i googled it and this is what i got i don't know how it is. sorry.