6x+y=8
5x+y=8

using elimination method

x=0 y=8

Step-by-step explanation:

So since the y's are already the same you can just subtract, but if one y is a negative and one is a positive you add them to make 0 but you subtract to make them 0 since both are positive,

-11x=0

Isolate the x by dividing -11 on both sides

and it should equal to

x=0

cuz any number divided by a 0 like 0/-11 will be 0

Now put the 0 in one of the equation

5(0)+y=8

then

0+y=8

so

y=8

then I'ma go on Google to make sure my answers are right

Which is right :)

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk