SOLUTION: I am struggling with this problem and don't know what it means or how to solve. Can anyone help me? Find the constant of variation k. m varies directly with n; m = 144 when n

Algebra.Com
Question 32853: I am struggling with this problem and don't know what it means or how to solve. Can anyone help me?
Find the constant of variation k.
m varies directly with n; m = 144 when n = 8

Answer by sarah_adam(201)   (Show Source): You can put this solution on YOUR website!
First, we set up our general equation. Because y is directly proportional to x, we have: y = cx
where c is the constant of proportionality. In other words, when x goes up, y goes up, and when x goes down, y goes down.

Here m varies directly with n and K = constant of proportionality
so the equation will be m = nk
here the values are m = 144 and n = 8
so simply substitute those values in the equation to get the value of k
144 = (8)* k
therefore k = 144/8 = 18
k = 18

RELATED QUESTIONS

Hi all, Im having trouble understanding what this question is asking, can anyone show me... (answered by Alan3354)
I've been struggling with this problem. 13n-12 ≤ -8+9n I don't know how to solve... (answered by CubeyThePenguin,josgarithmetic,ikleyn)
Can you help me with this problem. I don't know how to solve it.... (answered by CubeyThePenguin)
I do not know how am I supposed to answer questions with unknown variables, like maybe... (answered by josgarithmetic,ikleyn)
Could you please help me with this Calculus problem? I am finding this problem hard to... (answered by math_helper,ikleyn,greenestamps)
Can anyone help me solve this problem? Divide and simplify. 11v-66/9 * v-6/6v I am... (answered by mangopeeler07)
I don;t get this graphing thing at all! I have to solve the system of linear equations by (answered by ankor@dixie-net.com)
Hello night owls, if anyone can help me with this, I would be so grateful. I really want (answered by josgarithmetic)
I have been struggling on this problem. I was wondering if anyone could help me? I would (answered by ontmtnbike)