The cost of 24 bottles of water is $6. How much does it cost for 10 bottles of water?

Find the unit rate: 24 water bottles : 6 dollars total = $0.25 a water bottle

Next, take the rate per water bottle and multiply it by ten: $0.25 a water bottle x 10 bottles of water = $2.50 total

So, this gives you your final answer. Ten bottles of water cost you $2.50!