999946
----------
10,000,000
Answer:
6 adults
Step-by-step explanation:
Let
x -----> the number of children
y ----> the number of adults
we know that
The ratio

so
using proportion
Find the value of y for x=(20-12)=8

therefore
6 adults
Answer:
Area of rectangle is 100 square inches.
Step-by-step explanation:
Area of rectangle = length * width
a=l*w
a=4w*w
a=4w^2............(1)
Put the value of w in (1)
a=4(5)^2
a=4(25)
a=100in^2
Answer:
area=38.465, circumference=21.98
Step-by-step explanation:
Divide the diameter by 2 to find the radius
7/2=3.5
Use the formula πr^2 find area
3.5*3.5=12.25
12.25*3.14=38.465
a=38.465
Then, use the formula 2πr to find circumference
2*3.14=6.28
6.28*3.5=21.98
c=21.98