Thread: inverse variation and proportion problems!!!

1) If m varies inversely as n squared (didn't know how to put little 2 subscript), and m=9 when n=2/3, find m when n=5/4.
Please show all steps



2) Which container of ice tea is the best buy. Find this using ratio or proportion.

350g costs $3.99
600g costs $5.49
1kg costs $8.99

Thanks!

Originally Posted by wickedcharchar

1) If m varies inversely as n squared (didn't know how to put little 2 subscript), and m=9 when n=2/3, find m when n=5/4.
Please show all steps



2) Which container of ice tea is the best buy. Find this using ratio or proportion.

350g costs $3.99
600g costs $5.49
1kg costs $8.99

Thanks!

so then evaluating at your two values gives

solveing for k gives k=4 so we get

using n=5/4 to evaluate we get...



for the next part you want to find the unit price note that the last one is in kg 1kg=1000g

So divide the price by how much for each one and pick the smallest value.