Answer:
12
Step-by-step explanation:
let the missing number be x
8 + x * 4 = 56
8 + 4x = 56
4x = 56 - 8
4x = 48
x = 48/4
x = 12
therefore missing number is 12
Answer:
The second one is the true statement.
Step-by-step explanation:
Answer:
x = 20
Step-by-step explanation:
This is an equilateral triangle since all of the sides are the same.
So each angle has to be 60 degrees since a triangle is 180 degrees total.
3x = 60
60 divided by 3 = 20
So the value of x is 20.
Hope it helped! My answer is expert verified.
(4*7/2)+(15*7)+(7*6/2) = 140