SOLUTION: john and claudia smith recently drove 231 1/4 miles on 12 1/2 gallons of gas. calculate how many miles per gallon they got in there car. the life expectancy of a circulating coi

Question 578486: john and claudia smith recently drove 231 1/4 miles on 12 1/2 gallons of gas. calculate how many miles per gallon they got in there car.
the life expectancy of a circulating coin is 30 years. the life expectancy of a circulating dollar bill is only 1/20 as long. find the life expectancy of circulating paper money. simplfy
A recipe for chocolate cookies calls for 2 1/3 cups of flour. if you are making 1 1/3 recipes, how many cups of flour needed?
The number of cups of flour needed to make 1 1/3 recipes of chocolate cookies is? simplfy
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
231.25/12.5=18.5 mpg
-------------------
30*1/20=30/20=1.5 yrs
--------------------
2 1/3*1 1/3=
7/3*4/3=28/9
28/9=3 1/10 cups

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