Visitors to a cinema are either children, adults or pensioners. The ratio of children to adults is 1 : 2 The ratio of adults to pensioners is 3 : 4 A stratified example of 85 is to be taken from the cinema visitors. How many pensioners should be in the sample?

C:A:P

3:6:8=85

C:A                    

1:2

A:P

3:4

Step-by-step explanation:

if 17=85

8=?

=40

45

step-by-step explanation:

to find a percentage, add a decimal in front and multiply it by the other number.

.25 times 180= 45

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb