The ratio is 4:5
so girls=4x
and boys=5x
(because you don't know how many boys or girls there are)
then the equation would be
4x+5x=18
9x=18
so x=2
then 2 times 4 which equals 8
and 2 times 5 which equals 10
so there are 8 girls and 10 boys
Answer:
4
Step-by-step explanation:
That's the answe!!
V= 18,000(0.78)^t decay
P= 4500(1.04)^t growth
A= 7000(1.0575)^t growth
P= 50(1/2)^t decay
P= 45(2)^t growth
A=9000(0.9)^t decay
Answer:
F(x) = 1/x^2
Step-by-step explanation:
F(x) = 1/x^2 is
y = 1/x^2
graph goes up to 10 each side
plug in 1,2,3,4,5,6,7,8,9,10 for x and see what y looks like
when x is 1,2,3,4,5,6,7,8,9,10
y is 1,1/4,1/9,etc