Simplifying 0.20 = x^2 / (25 - x):
Multiply both sides by (25 - x)
0.20(25 - x) = x^2
Distributing 0.20:
5 - 0.20x = x^2
Placing all equations on to one side:
x^2 + 0.20x - 5 = 0
Where:
a = 1
b = 0.20
c = -5
Answer: You can put this solution on YOUR website!
let's call the number of adults a and the number of children c.
so the total adults plus the total children equals 40 or a+c=40 or c=40-a
also we know that 8a+5c=272
substituting c's value in the 1st equation into the 2nd equation we get
8a+5(40-a)=272---->lets distribute that left side---->8a+200-5a=272
now let's combine like terms on either side of the equals sign.
3a=72 a=24
so we have highlight%2824-adults%29
and c=40-a(24)=highlight%2816-children%29
Answer:
Step-by-step explanation:
So we have the equation:
First, let's subtract 9 from both sides:
Divide both sides by -4:
Add 1 to both sides:
Divide both sides by 2:
And we're done!
Answer:
c = 10
Step-by-step explanation:
3 is to 6 as 5 is to c:
3 5
----- = -----
6 c
Then 3c = 30, and c = 10
