Answer:
x > 4
Step-by-step explanation:
27 < 5 ( x ) + 7
27 < 5x + 7
20 < 5x
4 < x
x > 4
Answer:
< 3 and < 5
Step-by-step explanation:
Others are not
It is definitely an isosceles triangle. when you plot it in a graph you will see that AB=BC=CA or AC.All the sides will be equal.
Answer:
x=20
Step-by-step explanation:
3x - 10 + 5x + 30 = 180
8x + 20 = 180
8x = 160
x = 160/8
x = 20
check:
3(20) - 10 + 5(20) + 30 = 180
60 - 10 + 100 + 30 = 180
50 + 100 + 30 = 180
150 + 30 = 180
180 = 180 ✓