Answer:
D
Step-by-step explanation:
7x and x+20 lie on the straight line so they will equal to 180. So now we can add them and set them equal to 180 so we can solve for x.
7x + x + 20 = 180
8x + 20 = 180
8x = 160
x = 20.
So the value of x is 20
Hope I helped :)
Answer:
He needs 37.8 meters altogether.
Step-by-step explanation:
Because each plank is 2.7 meters, we can just multiply 14 by 2.7 to get 37.8 meters.
Answer:
i think is A
Step-by-step explanation:
