C+a=630
a=630-c
2c+5a=2910 using a found above in this we have:
2c+5(630-c)=2910
2c+3150-5c=2910
-3c+3150=2910
-3c=-240
c=80
So 80 children attended the concert.
Answer:
Emily: 
Ally: 
Rosalie: 
Rosaline: 
Step-by-step explanation:
We know that the total is 83.90. Each person's fraction will be 
.
Try 11 because 36 plus 43 plus 90(right angle) is 169. The total degree of yeh triangle is 180 so 180-169 is 11
Answer: The result of the division is the number pi.
And the approximation of pi is: pi = 3.14
Step-by-step explanation:
The distance around a circle is called the perimeter of the circle.
The distance across a circle (This is a line that starts on one point of the circle, go through the center of the circle, and end in the next time it intersects the circle) is called the diameter of the circle.
The quotient between these two quantities is maybe one of the most famous numbers in the world, is the number pi, written as:
π = 3.14159265358979...
Is an irrational number, which means that the decimals keep going infinitely.
Then we can conclude that:
"The result of dividing the perimeter by the diameter, is equal to the number pi = π = 3.14159265358979..."
Because this is an irrational number and is actually impossible to write it, we usually use pi = 3.14 to aproximate it.
Answer:
6 ounces of juice
Step-by-step explanation:
