Miss smith wants to by water bottles for her students for field day. she found a great deal where she can get 4 water bottles for $2.she has 24 students in her class .how much will it cost to buy water bottles for her class?

Let's set this up as a proportion ( will be our answer).

Using the fact that is the same as , we can say:

Now, we can say:

Our answer is $12.

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