Mis directly proportional to r2.when r=2,m=14.work out the value of r when m =224

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form  

In this problem

Let

substitute

Find the value of k

For

----> constant of proportionality

the equation is equal to

Find the value of r when m=224

substitute in the equation and solve for r

0.0076, if you meant 4.125 divided by 0.03125 it would be 132

step-by-step explanation:

first you have to move the decimal in 0.03125 over until its behind the 5 which is 5 places over. now the number is 3125

then you have to move the decimal in 4.125, 5 places over. now the number is 4,112,500.

now you divide like you would normally would and get 0.0076