40 + 10x = 5x - 30
To begin isolating x, subtract 40 from both sides.
40 + 10x - 40 = 5x - 30 - 40
10x = 5x - 70
Subtract 5x from both sides.
10x - 5x= 5x - 70 - 5x
5x = -70
Finally, divide both sides by 5.
5x/5 = -70/5
x = -14
Answer:
x = -14
Answer:
Step-by-step explanation:
Two angles are supplementary when their sum is 180
∠AXB + ∠BXC = 180° {Supplementary angles}
8x + 10 + 2x - 20 = 180
Add the like terms
10x - 10 = 180
10x = 180 + 10
10x = 190
x = 190/10
x = 19°
∠AXB = 8x + 10
= 8 * 19 +10
= 152 + 10
∠AXB = 162
Answer:
2:45 pm for three hours so the time would be 3:00 pm
Answer:
1260 ways
Step-by-step explanation:
We want to arrange n people into x roles.
is the number of people for the first role.
is the number of people for the second role.
is the number of people for the xth role.
The total number of arrangents is:
In this question:
9 people
Team of 4
Team of 3
Team of 2
How many ways:
