The perimeter is the sum of all the sides together so for this problem:
4 + 4 + 5 + 7 + x = 32
20 + x = 32
x = 32 - 20
x = 12 inches
Answer:
x = -2
Step-by-step explanation:
7(2 - x) = 28
Distribute
14 -7x = 28
Subtract 14 from each side
14-7x-14 = 28-14
-7x = 14
Divide each side by -7
-7x/-7 = 14/-7
x = -2
#of serverings: 1. 2. 3. 4. 5...
X: 4. 8. 12. 16. 20.
Y: 5. 10. 15. 20. 25.
open circle means less than or greater than (NO EQUALS)
line to the left means less than
x< 2
Choice A
closed circle means less than or equal to or greater than or equal to
line to the left means less than
x<=-4.25
Choice B
2(3x - 4) = 2x + 12
6x - 8 = 2x + 12
4x = 20
x = 5
AB = 3(5) - 4 = 11
AC = 2(5) + 12 = 22
BC = 7(5) - 2 = 35 - 2 = 33
AC:BC = 22:33 = 2:3