Answer:
The area is 8
Step-by-step explanation:
If the perimeter is 12, we can just start guessing and checking. in this case, if 4 is the length, that means 2 is its width, since 4-2=2. then you find the area(basexhight) 4x2=8!
Let width be x inches so the length will be 2x inches.
so we have
2*2x + 2x = 102
6x = 102
x= 17
so the length = 2x = 2*17 = 34 inches
See how many 5s there are in 47? There are 9 and also a leftover 2 which is your remainder.<span />
Use substitution
x -4x - 7 = 2
-3x = 9, x = -3
Y = -4(-3) - 7
Y = 12 - 7, y = 5
Solution: x = -3, y = 5