M varies directly as n and inversely as the square of p, and M= 10 when n=8 and p = 2. Find M when n=6 and p = 3.

Step-by-step explanation:

It is given that M varies directly as n and inversely as the square of p. So,

where, k is constant of proportionality.

It is given that M= 10 when n=8 and p = 2.

Substitute M= 10, n=8 and p = 2 in the above equation.

Divide both sides by 2.

The value of k is 5.

So, requied equation is

Now, substitute n=6 and p=3 in the above equation.

Therefore, the required value of M is

costs the what? what is the cost of the pants?

step-by-step explanation:

if it is $10, then the price is 14.

take 40% of the cost, and then add the cost.

40% of 10 = 4

4+10 = 14.