Distance Problem: Erin just purchased a new car which gets 49 miles per gallon on highway roads and 45 miles per gallon on city roads. If, in a week, Erin used a total of 12 gallons of gas for a total of 560 miles, how many miles did she travel on highway roads and how many miles did she travel on city roads?

Q: A concentrated solution contains 10% salt. How many liters of this solution does Mary need to add to…

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Q: The ratio of rock music to total CD's that Ella owns is 25/40.Paolo has 50 rock music CD's.The ratio…

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Q: If 2 cups equal a pint, and 2 pints equal a quart, and 4 quarts equal a gallon, how many cups are…

A: Here given that                      2 cups = 1 pint                      2 pints = 1 quart…

Q: If it takes 8 quarts of ice cream to feed 30 people, how many gallons of ice cream will it take to…

A: Let it will take x quarts  to feed 75 people.

Q: At Jessica Java, a new blend of coffee is featured each week. This week, Jessica is creating a…

A: Brazilian beans cost per kg = $12 Ethiopian beans cost per kg = $17 Let the amount of Brazilian…

Q: A store mixes Brazilian coffee worth $10 per kilogram and Turkish coffee worth $14 per kilogram. The…

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Q: At the start of the school year,the ratio of boys to girls in drama club is 5 to 3.After Winter…

A: At starting in drama club let the number of boys be x and number of girls is y  At start ration of…

Q: Iowa farmer Sparks has 65% octane Ethanol that he wants to mix with 95% octane gasoline to fill his…

A: Let us assume that, the farmer has x gallons of 65% Ethanol and y gallons of 95% gasoline. The…

Q: A 12% tin alloy is to be melted with an 18% tin alloy.   How many kilograms of each tin alloy must…

A: Alloy 1 =  12 % Alloy 2  = 18% Let the quanity of alloy 1 =x  Then , quanity of allo 2 = 15 -x

Q: The admission fee at an amusement park is $3.75 for children and $6.00 for adults. On a certain day,…

A: Let the number of children be cAnd the number of adults be aSo the total number of persons is c+aBut…