An 18 ouncw box of cereal costs 5.40 . How much would you expect to pay if you bought the 24 ounce box?

Question

An 18  ouncw box of cereal costs 5.40 . How much would you expect to pay if you bought the 24 ounce box?

anonymous · Answer

you have many ways to do this but all involve ratios

anonymous · Answer

i know HELP

anonymous · Answer

$$\frac{5.40}{18}=\frac{x}{24}$$

anonymous · Answer

that would be a start.  
$$\frac{price}{ounce}=\frac{price}{ounce}$$

anonymous · Answer

but how much money would it cost

anonymous · Answer

The ratio of the box masses should be the same as the ratio of the costs (unless you get a bulk discount), i.e. $$\frac{24}{18} = \frac{x}{5.40}$$

anonymous · Answer

so answer is 
$$x=\frac{24\times 5.4}{18}$$
i get $7.20

anonymous · Answer

UR RIGHT

anonymous · Answer

give me a medal for trying

anonymous · Answer

see i told you several ways to do it. notice that solving the way dalvoron wrote it also involves computing 
$$x=\frac{24\times 5.4}{18}$$

anonymous · Answer

$7.20

zarkon · Answer

I would expect to pay less than $7.20

Shouldn't you get a discount when you buy more :)