33.02%
The formula is number of students who bought the tickets
.......................--------------------------------------------------------
.......................number of students enrolled
C) reflection over the x-axis
For this case we have the following expression:
To verify the answer we have:
Multiplying both sides of the equation by -14:
Thus, the answer can be verified with:
Answer:
Answer:
176521221 divisible by 9 but not by 11
149235678 divisible by 9 but not by 11
Step-by-step explanation:
There are rules that can be used to determine if a number is divisible by other. We will use the following:
- A number is divisible by 9, if the sum of its digits is divisible by 9.
- A number is divisible by 11, if the alternating sum of the digits read from left to right is divisible by 9.
Let's apply this rules to the given numbers...
For 176521221:
- 1 + 7 + 6 + 5 + 2 + 1 + 2 + 2 + 1 = 27, and 27 divisible by 9 => 176521221 divisible by 9
- 1 - 7 + 6 - 5 + 2 - 1 + 2 - 2 + 1 = -3, and -3 not divisible by 11 => 176521221 not divisible by 11
For 149235678 :
- 1 + 4 + 9 + 2 + 3 + 5 + 6 + 7 + 8 = 45, and 45 divisible by 9 => 149235678 divisible by 9
- 1 - 4 + 9 - 2 + 3 - 5 + 6 - 7 + 8 = 9, and 9 not divisible by 11 => 149235678 not divisible by 11
Answer:
x=130
Step-by-step explanation:
Find the base angles of the isosceles triangle: 2y+50=180
2y=130
y=65
x=2(65)=130
Therefore, x=130
I hope this helped and have a good rest of your day!
