So i have a tricky question in my take-home intermediate algebra test, but i dont kno if its worded strangely or what... anyway if you could help me out that would be great.

Note: ONLY ANSWER IF you for sure know how to do the problem, because this counts towards my grade.. thanks in advance.

Question:

y varies jointly as m and the square of n, and inversely as p. y=15 when m=2, n=1, and p=6. Find y when m=3, n=4, and p=10.

2. Originally Posted by bayarea1337
Question:

y varies jointly as m and the square of n, and inversely as p. y=15 when m=2, n=1, and p=6. Find y when m=3, n=4, and p=10.
According to the problem,
y = k*mn^2/p
Substitute the first set of data and find k.
Then substitute the second set of data to find required y value.

3. According to the problem,
y = k*mn^2/p
Substitute the first set of data and find k.
Then substitute the second set of data to find required y value.

just to be clear * means multiply, and no clue what does ^ mean?

but thank you so much for the help, you made that other one easy!

4. * means multiplication and ^ means power.

5. what is K? where did that come from? there is no k in the problem as far as i can see.

If anyone would be willing to walk through the problem clearly, i would really appreciate it... i've never done a problem likes this before.

6. k is called the constant of proportionality.
If a varies with b then a = kb.
Amount A spent on apple varies with the number of apples N.
Then A = kN.
In this case k is a constant and it is the cost of one apple.

7. thanks again, i understand now.. you're a lifesaver.

8. Originally Posted by bayarea1337
So i have a tricky question in my take-home intermediate algebra test, but i dont kno if its worded strangely or what... anyway if you could help me out that would be great.

Note: ONLY ANSWER IF you for sure know how to do the problem, because this counts towards my grade.. thanks in advance.

Question:

y varies jointly as m and the square of n, and inversely as p. y=15 when m=2, n=1, and p=6. Find y when m=3, n=4, and p=10.
MHF policy is to not knowingly help with work that counts towards your grade - it's meant to be your own work not the work of others.