x+y=12
x-y=4
Then you solve:
x+y=12
-y -y
x=12-y
x-y=4
+y +y
x=4+y
4+y=12-y
+y +y
4+2y=12
-4 -4
2y=8
divide both sides by 2 to isolate y
y=4
Plug it into one of the equations
x+4=12
-4 -4
x=8
Answer:
492 *100/625 =80 %
Step-by-step explanation:
Where [*]= Multiply
500×12%
(500×12)÷100
6000÷100
=60
so,
500+60=560
The answer is .33333333
Because 8 divided by 24= .33333333
I hope this helps:)
The parking lots perimeter is 102 yards because 378/9 is 42 and 42x2 is 84 added to 9 doubled (18) is 102 yards
