Questions on Word Problems: Mixtures answered by real tutors!

Tutors Answer Your Questions about Mixture Word Problems (FREE)

Question 939363: How much pure antifreeze must be added to 8 gallons of 10% antifreeze to make a 80% antifreeze.
Click here to see answer by josgarithmetic(39617)

Question 939413: A grocer is mixing 80 cent per kg coffee with $1.20 per kg coffee to
make a mixture worth $1.08 per kg. How much of each kind of coffee should be used to make
70 kg of the mixture?

Click here to see answer by josmiceli(19441)

Question 939460: How many gallon in 800 pounds of a marshmallow slurry mix/
Click here to see answer by josgarithmetic(39617)

Question 939627: How many liters of a 20% alcohol should be added to an 80% alcohol solution to obtain 15 liters of a 60% alcohol solution?
Click here to see answer by stanbon(75887)

Question 939620: At what ratio milk costing 16.50 per litre be mixed with water so that the price of the mixture will be Rs.15 per litre?
Click here to see answer by josmiceli(19441)

Question 939697: Kayla and her brother mixed together some soil and some silt to make 12 m^3 of soil with a 75% silt content. They used 7 m^3 of silt and 5 m^3 of a soil they purchased. What was the silt content of the soil they purchased?
Click here to see answer by josmiceli(19441)

Question 939886: Two persons are to run a race but one can run 12 meters per second, whereas the other can run 6 meters per second. If the slower runner has a 93- meter head start,how long will it be before the faster runner catches the slower runner, if they begin at the same time?
Click here to see answer by josmiceli(19441)

Question 939920: A chemist needs 80 milliliters of a 20% solution but has only 16% and 32% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
Click here to see answer by josgarithmetic(39617)

Question 939916: How many ounces of 10% alcohol would need to be mixed with
pure rubbing alcohol to get 16 ounces of a 14% alcohol mix.
Click here to see answer by josgarithmetic(39617)

Question 939883: If a 165-mile trip took 7 1/2 gallons, of gas, how many miles can be driven with a full tank of 16 gallons?
Click here to see answer by rfer(16322)

Question 940004: A grocer mixes peanuts that cost $1.49 per pound and walnuts that cost $2.69 per pound to make 100 pounds of a mixer that cost $2.21 per pound. How much of each kind of nut did the grocer put into the mixture?

Click here to see answer by stanbon(75887)

Question 940081: One liter of 10% alcohol is mixed with 30% of alcohol. What is the percentage of alcohol in the resulting mixture?
Click here to see answer by krutarthas(22)

Question 940040: Coffee cafe make 90 pounds of coffee that costs $6 per pound. The types of coffee used to make this mixture costs $7 per pound and $4 per pound. How many pounds of the $7-per-pound coffee should be used in this mixture?
Click here to see answer by mananth(16946)

Question 940103: Solve the equations.
(a) 2d+5=15
D= I got d=3
I need assistance figuring out 20e-4=0 what is e=
Click here to see answer by Fombitz(32388)

Question 940013: If u multiply a number by 6 and then subtract negative ten, the difference is negative 38. What is the number?
Click here to see answer by ankor@dixie-net.com(22740)

Question 940012: A cement mixture calls for 80 pounds of cement for 4 gallons of water. What is the ratio of cement to water?
Click here to see answer by ewatrrr(24785)

Question 940371: One liter of 10% alcohol is mixed with 3 liters of 30% alcohol. What is the percentage of alcohol in the resulting mixture?
Click here to see answer by josmiceli(19441)

Question 940405: The cost of x litres of petrol at $1.70 per litre
Click here to see answer by Fombitz(32388)

Question 940450: Solve each exponential equation. Give the exact value for x.
8x = 1/64
7x = 10
4x = 2.5

4x = 5
The x's should be squared

Click here to see answer by Alan3354(69443)

Question 940466: How many quarts of pure antifreeze must be added to 7 quarts of 10% antifreeze solution to obtain a 20% antifreeze solution?
Click here to see answer by macston(5194)

Question 940485: Find the number of decibels for the power of the sound given. Round to the nearest decibel.
A rocket engine, 2.53 x 10^-5watts/cm2
Click here to see answer by macston(5194)

Question 940513: Simplify the expression.
5(x − 1) − 3(x2 + 2x + 3) − 8(x + 9)
Click here to see answer by Fombitz(32388)

Question 940533: a service station has 48 octane and 72 octane gasoline. how many liters of each gasoline should be mixed to provide 12 liters of 66 octane gasoline for a chemistry experiment
Click here to see answer by josgarithmetic(39617)

Question 940627: The number is greater than 10 and less than 18.The number is the sum of two identical odd numbers. What is the number
Click here to see answer by stanbon(75887)

Question 940636: A service station has 36 octane and 60 octane gasoline. How many liters of each gasoline should be mixed to provide 12 liters of 50 octane gasoline for a chemistry experiment?
Click here to see answer by stanbon(75887)

Question 940487: An artifact was found and tested for its carbon-14 content. If 77% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? (Carbon-14 has a half-life of 5,730 years.)

Click here to see answer by ankor@dixie-net.com(22740)

Question 940607: Ribbon A is 1/3m long. It is 2/5m shorter than ribbon B. What's the total length of the two ribbons?
Click here to see answer by Theo(13342)

Question 940774: Find the future value, using the future value formula and a calculator. (Round your answer to the nearest cent.)
$889 at 5.5% compounded quarterly for 5 years
Click here to see answer by rfer(16322)

Question 940772: Suppose that an insurance agent offers you a policy that will provide you with a yearly income of $30,000 in 30 years. What is the comparable salary today, assuming an inflation rate of 6% compounded annually? (Round your answer to the nearest cent.)

Click here to see answer by rfer(16322)

Question 940795: Kenny mixes Himalayan Diamonds in trail mix, which contains 40% nuts, with Alpine Gold trail mix, which contains 25% nuts to create 20 pound mixture that is 30% nuts. How much of each type of trail mix does he use?
Click here to see answer by josgarithmetic(39617)

Question 940755: how many ounces of vermouth containing 20% alcohol should be added to 10 ounces of gin containing 50% alcohol to make a pitcher of martinis that contain 30% alcohol. How much ounces of vermouth do we add?
Click here to see answer by josgarithmetic(39617)

Question 940802: How many mL of a 45% acid solution must be mixed with a 35% solution to produce 500 mL of a 40% solution?
Click here to see answer by Alan3354(69443)

Question 940894: How many total ounces of trail mix can be made with 10 ounces of peanuts
Click here to see answer by Alan3354(69443)

Question 940912: What is an example of a word problem that has an equation that is as follows:
($60 + $3 - $15) divided by $4 = X
Click here to see answer by Edwin McCravy(20056)

Question 940938: A snack mix is made from peanuts that cost $3.30 per pound and caramel popcorn that cost $2.50 per pound. The mixture costs $3.00 per pound. Does the mixture contain more peanuts or more popcorn?
Click here to see answer by josgarithmetic(39617)

Question 940989: a chemist has one solution that is 20% saline and a second that is 65% saline. How many gallons of each should be mixed together to get 120 gallons of a solution that is 50% saline.

Click here to see answer by josgarithmetic(39617)

Question 941069: Suppose you add 70% lemon juice to 1 gallon of 20% lemon juice solution until the mixture becomes 40% lemon juice, how much of the final mixture will you have?
Click here to see answer by josmiceli(19441)

Question 941081: a cake uses a mixture of 7 part flour to 2 part milk powder. how much of each is needed to make 800g of mixture?

Click here to see answer by Fombitz(32388)

Question 941109: rubbing alcohol is typically diluted with water to 70% strength. if you need 2.8 oz of 45% rubbing alcohol, how many ounces of 70% rubbing alcohol and how much water should you combine. I know the formula is a.c = q but when sitting up the equation i am very confused. Please help! Thank you in advance.
Click here to see answer by josgarithmetic(39617)

Question 941171: Please help,
36g of an alloy of copper and zinc contains 45% copper. How much pure copper do you need to add in order to get a 60% copper alloy?

Click here to see answer by ankor@dixie-net.com(22740)

Question 941307: the radiator of an automobile has a capacity of 16 quarts. it is presently filled with a 20% antifreeze solution. how many quarts must be drained and replaced with pure antifreeze to make the radiator contain a 50% antifreeze solution?
Click here to see answer by josgarithmetic(39617)

Question 941273: Can you help me figure out this word problem: In a chemistry lab, you have two vinegars. one is 5% acidic acid and the other is 6.5% acidic acid. You want to make 200ml with 6% acidic acid. How many ml of each vinegar do you need to mix together.
Click here to see answer by josgarithmetic(39617)

Question 941315: the radiator of an car has a capacity of 16 quarts. it is presently filled with a 20% antifreeze solution. how many quarts must be drained and replaced with pure antifreeze to make the radiator contain a 50% antifreeze solution?
Click here to see answer by josgarithmetic(39617)

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