Answer:
(b) the unknown angle is 80°
Step-by-step explanation:
The unkown angle is:
[2(x-10)]°
Substituting "x" by 50 (part a)
[2(50-10)]°=[2(40)]°=80°
Answer:
The number is 3.
Step-by-step explanation:
To find : A number which decreased by 12 equals 3 times it’s opposite ?
Solution :
Let the number be 'x'.
It's opposite is '-x'.
A number which decreased by 12 equals 3 times it’s opposite
i.e. 
Solving the equation,





Therefore, the number is 3.
Answer:
35 ÷ 7
In this quotient, 35 is the dividend and 7 is the divisor.
Hope that helps.
- 5x - 4x + 24 = - 3
9x = 27
x = 3
Answer:
I can't answer that if there is no picture, I'm sorry