Answer:
Step-by-step explanation:
Let the number be x
4times a number =4x
The difference of four times a number and seven : 4x - 7
4x - 7 = 13
4x = 13 + 7
4x = 20
x = 20/4
x = 5
Answer:
x = 75°
Step-by-step explanation:
Sum of angles in a triangle: 180°
So,
50°+55°+x=180°
105°+ x = 180°
Subtract 105° from both sides
x = 75°
Answer:
152 i think
Step-by-step explanation:
152 i think
Answer:
The answer is 3
Step-by-step explanation:
7-8-(-5)-1
-1-(-5)-1
-1 + 5 - 1
4 - 1
3