Questions on Word Problems: Mixtures answered by real tutors!

Tutors Answer Your Questions about Mixture Word Problems (FREE)

Question 250285: how much water must be added to 60 kg of an 80 percent acid solution to produce a 50 percent solution
Click here to see answer by Greenfinch(383)

Question 253008: can someone help me? this is my question:
how many gallons of a mixture containing 80% alcohol should be added to 6 gallons of 25% solution to give 30% solution?
Click here to see answer by ankor@dixie-net.com(22740)

Question 253041: How many liters of water must be added to 10L of 50% acid solution to produce 80% acid solution?
Click here to see answer by richwmiller(17219)

Question 253118: the $75 cost for a party was to be shared equally by all those attending. since five more people attended than was expected, the price per person dropped by $.50. how many people attended the party?
Click here to see answer by ankor@dixie-net.com(22740)

Question 253119: an experienced plumber made $600 for working on a certain job. his apprentice, who makes $3 per hour less, also made $600. however, the apprentice worked 10 h more than the plumber. how much does the plumber make per hour?
Click here to see answer by ankor@dixie-net.com(22740)

Question 253159: River City's present population of 1000 is expected to grow exponentially over the next 10 years at 4% per year. What is the expected population at the end of that time?
Click here to see answer by Greenfinch(383)

Question 253228: how much water must be added to 12 grams of a 90% acid solution to produce a 25% acid solution?
Click here to see answer by drk(1908)

Question 253553: An auto mechanic adds 25mL of water to 125mL of a 20% antifreeze solution. What is the concentration of antifreeze in the resulting mixture?
Click here to see answer by richwmiller(17219)

Question 253601: Milk with 3% butterfat was mixed with cream with 36% butterfat to produce 33 L of half and half with 18% butterfat content. How much of each was used?
Click here to see answer by checkley77(12844)

Question 253733: 1 1/2 pounds plus 1/3 ounces equals?
Click here to see answer by richwmiller(17219)

Question 253878: What amounts of 70% pure silver and 75% pure silver should be mixed to obtain 14 grams of 70% pure silver?
Click here to see answer by richwmiller(17219)

Question 254008: How many liters of a 40 percent solution and a 16 percent solution must be mixed to obtain 20 liters of a 22 percent solution?
Click here to see answer by edjones(8007)

Question 254095: Roman mixes 12 liters of 8% acid solution with a 20% acid solution, which results in a 16% acid solution. Find the number of liters of 20% acid solution in the new mixture.
Click here to see answer by ptaylor(2198)

Question 254194: Pierre bikes 7 km/h faster than Sal. They start at the same place and travel in opposite directions for 2 hours. They are then 86 km apart. How fast is Pierre traveling?
Click here to see answer by richwmiller(17219)

Question 254254: If the area of the dining room and living room is 300 sq. ft., what is the equation that would be used to solve for x? Write the equation with zero on the right, ready to solve.
Click here to see answer by drk(1908)

Question 249696: Two liters of 40% acid are mixed with 4 liters of another acid to form a 50% acid solution. What is the strength of the added acid?
Click here to see answer by richwmiller(17219)

Question 254281: Lemon drops and jelly beans are mixed to make a 100 pound mix. If the lemon drops cost $1.90 per pound and jelly beans cost $1.20 per pound, how many pounds of lemon drops are needed to make the mix cost $1.48 per pound?
Click here to see answer by richwmiller(17219)

Question 254288: How many gallons of fuel costing $1.15 a gallon must be mixed with a fuel costing $.85 per gallon to get 40 gallons of a fuel that costs $1 per gallon?
Click here to see answer by drk(1908)

Question 254442: Write a program that takes the length and width of a rectangular yard and the length and width of a rectangular house situated in the yard. Your program should compute the time required to cut the grass at the rate of two square feet a second.

Click here to see answer by richwmiller(17219)

Question 254408: A chemist needs to mix a solution that is 34% silver nitrate with one that is 4% silver nitrate to obtain 100 milliliters of a mixture that is 7% silver nitrate. How many milliliter of each of the solutions must be used?
Click here to see answer by ankor@dixie-net.com(22740)

Question 254744: Natures's Best wants to combine nuts they sell for $3.60 a pound with dried fruit they sell for 2.40 a pound to create a trail mix. How much of each snack should they use to make 10 pounds of trail mix that would sell for $3.30 por pound?

Click here to see answer by richwmiller(17219)

Question 254708: A spice mixture is 25% thyme. How many grams of thyme must be added to make a 15 gram mixture that is 40% thyme?
Click here to see answer by ankor@dixie-net.com(22740)

Question 254934: An alloy of tin and copper has 6 pounds of copper for every 2 pounds of tin. If 200 pounds of this alloy are made, how many pounds of tin are used?
a. 25
b. 50
c. 100
d. 125
Click here to see answer by stanbon(75887)

Question 254975: hi Im not sure what kind of problem this is for sure but I think its a mixtuer problem. how do you solve this word problem Cole has a solution that is 20% water and another solution that is 60% water. He wants to mix these to make a 40 mL of each solution that is 30% water. How many mL of each solution should Cole mix together? I copied the question exactia
ly how it was in my algebra 1 book.
Click here to see answer by ankor@dixie-net.com(22740)

Question 254995: A CHEMISTRY STUDENT NEEDS 10L OF 12% ACID SOLUTION.THE LAB HAS MADE AMPLE AMOUNTS OF 10% AND 20% ACID SOLUTIONS.HOW MANY LITERS OF EACH SOLUTION SHOULD THE STUDENT MIX?
Click here to see answer by richwmiller(17219)

Question 255216: How many liters of water must be evaporated to turn 12 liters of 24% salt solution into a 36% solution?

Click here to see answer by richwmiller(17219)

Question 255220: A swimming pool contains 15,000 gallons of water. How many gallons of chlorine must be added to bring the water to a (3/100)% solution?
Click here to see answer by edjones(8007)

Question 255213: How many pounds of coffee beans selling for $2.60 per pound should be mixed wit 7 pounds of coffee beans selling for $2 per pound to obtain a mixture selling for $2.18 per pound?
Click here to see answer by checkley77(12844)

Question 255536: PLEASE HELP ME!!
a drama club is planning a bus trip to New York City to see a Broadway play. The cost per person for the bus rental varies inversely as the number of people going on the trip. It will cost $30 per person if 44 people go on the trip. How much will it cost per person if 60 people go on the trip? Round your answer to the nearest cent, if necessary.
Click here to see answer by rfer(16322)

Question 255570:
It is required to make 12 grams of certain chemical compound called Z. This is made from compounds W, X, and Y in the ratio of 2:1:3. The compound Y is itself made from W and X. To make 6 grams of Y requires 4 grams of W and 2 grams of X. How much W and X is required to make the required amount of Z.

Click here to see answer by palanisamy(496)

Question 255487: How much of a 50% acid solution must be mixed with 8 gallons of a 22% acid solution to obtain a solution that is 40% acid?
Click here to see answer by checkley77(12844)

Question 255886: A chemical company has two varietys of toxic chemical, a 10% solution and a 20% solution. A customer wants 10 liters of a 16% solution. How many liters of each concentration should be mixed to fill the order?
Tried all sorts of different ways and just can't seem to get this one right. Not by using the example my teacher gave me. Any help would be greatly appreciated.
Click here to see answer by checkley77(12844)

Question 256007: how much water must be added to 50 gallons of a 40% alcohol solution to reduce the concentration to 16% alcohol?
Click here to see answer by ptaylor(2198)

Question 256069: the supply S of a commodity (in thousands of units), if the price is P dollars per unit, is given by the equation
s= 0,3p+3
the demand D for that commodity(in thousands of units), if the price is p dollas per unit, is given by the equation
d= -o,5p+9
the value of p for which s = d is called equilibrium price
a) graph both equations in the same coordinate plane. (let the horizontal axis represent price and the vertical axis represent supply or demand in thousands of units)
b) determine the equilibrium price
c) what will happen at prices greater than this price?

TUTORS i really need help with this because i dont even understand the problem either so i dont really know what procedure to apply :S:S anyway thans for any help that you can give me
Click here to see answer by stanbon(75887)

Question 255965: Can you please explain to me how to do this??
Mr. Greene has 8.5-by-11 in. cardboard sheets. As a class project, Mr. Greene asked each of his students to make an open-top box under these conditions:
I) Each box must be made by cutting small squares from each corner of a cardboard sheet.
II) The box must have a volume of 48 in^3.
III) The amount of cardboard waste must be minimized.
What is the approximate side length for the small squares that would be cut from the cardboard sheet?
Click here to see answer by ankor@dixie-net.com(22740)

Question 256253: Please help me solve this word problem: A 100 liter container is filled with a soultion that is 20% acid. How much of the solution should be poured out and replaced with pure acid in order for the container to have a solution that is 25% acid?
Click here to see answer by scott8148(6628)

Question 255953: Can you please show me how to do this??
The height of a cylinder is 6 ft greater then the radius. The volume of a cylinder is given by the formula V=pi r^2 h. If the total volume of the cylinder is 60 ft^3, what is the approximate radius of the cylinder?
Click here to see answer by ankor@dixie-net.com(22740)

Question 256371: Paul�s Plumbing charges $55 to visit a job site plus $35 per hour for labor. Reliable Plumbing charges $75 to visit a job site plus $30 per hour for labor. For how many hours of labor would the total charge be the same for the two companies?
Click here to see answer by Theo(13342)

Question 256539: Steam engine 22 and engine 65 are stationed at different locations along the Oldbridge line 86 miles apart. Engine 22 leaves the station at 1:00. Due to a communication error, engine 65 leaves the station at 2:00, heading toward engine 22. If engine 22 travels at a constant rate of 30 mph and Engine 65 travels at a constant rate of 40mph, by what time will the signalman have to switch one of the engines to a side track before they collide.
Click here to see answer by checkley77(12844)

Question 256793: if i add a 20% solution to a 100% solution to get 2 liters of a 75% solution, how much of each do i need?
Click here to see answer by Fombitz(32388)

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