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Question 760543: A printer has ink that is 13% cobalt blue color and ink that is 17% cobalt blue color. How many ounces of each ink are needed to make 2 gallons (256 ounces) of ink that is 15% cobalt blue color
Click here to see answer by josmiceli(19441)

Question 760651: I am unsure of how to work this problem out ??? Three software applications are priced as shown. Spreadsheet and database programs sold in equal numbers, but 30 more word processing applications were sold than the other two combined. If the three applications generated sales of $80,850, how many spreadsheets were sold?
Software Price
Spreadsheet $130
Database $185
Word processing $250
Click here to see answer by solver91311(24713)

Question 760705: How many pounds of chamomile tea that costs $18.20 per pound must be mixed with
12 lb of orange tea that costs $12.25 per pound to make a mixture that costs $14.63 per pound?
Click here to see answer by 2897696(96)

Question 760829: A 50 gallon of mixture contains 20% alcohol and 80%orange juice,how much pure alcohol should be added to this mixture to make it 50% alcohol content?
Click here to see answer by josmiceli(19441)

Question 760783: if 24 cookies cost $6.00 then what does 6 cookies cost?
Click here to see answer by josmiceli(19441)

Question 760913: How many liters of a 50% acid solution must be added to 10 liters of a 15% acid solution to produce a 25% acid solution?
Click here to see answer by josmiceli(19441)

Question 761012: My friend sent me a mixture problem, asking for help, and this one stumps me.
"The cooling system of a batmobile has a capacity of 15 liters. The system is currently filled with a mixture that is 40% antifreeze. How much of this mixture should be drained and replaced with pure antifreeze so that the system is filled with a solution that is 50% antifreeze?"
I suppose what is tripping me up is the "drained and replaced" bit. I could work up an equation for diluting or strengthening the mixture, but not both. (Does that even make sense?) Word problems are generally not my strength.
Click here to see answer by josgarithmetic(39617)

Question 711788: The radiator in a car is filled with a solution of 60% antifreeze and 40% water. The manufacturer of the antifreeze suggests that for summer driving, optimal cooling of the engine is obtained with only 50% antifreeze. If the capacity of the radiator is 3.6 L, how much coolant should be drained and replaced with water to reduce the antifreeze concentration to the recommended level?

Click here to see answer by heyimback(1)

Question 761645: six liters of water should be added to 12 liters of solution that is 60% acid to obtain a solution that is only 40% acid.
Click here to see answer by Alan3354(69443)

Question 761753: "How much water must be added to a bottle of 840 cm^3 of acid which contains 10% of pure acid to obtain a solution of 7% pure acid?"
Click here to see answer by Alan3354(69443)

Question 761892: A coffee shop is mixing Arabic coffee worth $15.00 per pound with Brazilian coffee worth $22.00 per pound. The combination will sell for $20.00 per pound. To make 100 Pounds of this mixture, how much of each type of coffee should be used?
Click here to see answer by ramkikk66(644)

Question 761913: please help me to solve this problem
The bermuda triangle supposedly causes trouble for aircraft pilots . it has a perimeter of 3075 mi . The shortest side measures 75 mi less than the middle side ,and the longest side measures 375 mi more than the middle side .Find the lengths of the three sides
my email shiela.balan@yahoo.com
Click here to see answer by nerdybill(7384)

Question 762049: How many gallons of 20% antifreeze should be mixed with 10 gallons of 101% antifreeze to obtain a 65% antifreeze mixture?
Click here to see answer by Alan3354(69443)

Question 762122: A MIXTURE OF 40 LITRES CONTAINS 10% WATER AND 90% MILK. HOW MANY LITRES OF WATER IS TO BE ADDED TO MAKE THE WATER CONTENT 20%
Click here to see answer by lwsshak3(11628)

Question 762268: Using the given variable write an equation or inequality that comes from the following word problem. Make no attempt to simplify or solve equation.
How many liters of 40% acid should be combined with a 20 liter mixture that is 15% acid in order to produce a mixture that is 25% acid? Use X= amount of 40% acid to add. (the equation will contain decimals)
Click here to see answer by josmiceli(19441)

Question 762276: i have 585 gallons of wine. How many 28 gallon containers can i fully fill?
Click here to see answer by jim_thompson5910(35256)

Question 762279: how many liters of 40% acid should be combined with a 20 liter mixture that is 15% acid in order to produce a mixture that is 25% acid? use X= amount of 40% acid to add. show the equation that comes from this problem.
I got (.4x+3)/(x+20)=.25
is this correct?
is the number of liters you need for the 40% acid: 6.6667 ?
Click here to see answer by josgarithmetic(39617)

Question 762342: If 700 ML of water cost Rs. 80 than what will be the cost of 1 ML
Click here to see answer by smiths(2)

Question 762360: A solution is prepared by combining 45g of salt in 55g of water.How many percent of salt are there in the solution.

Click here to see answer by Cromlix(4381)

Question 762335: 1. If the product of 7 and a number is 56. what is the number?
2. if 10 is subtracted from thrice a number, the answer is 35. what is the number?
3. 3/4th of a number is 15. what is the number?
Click here to see answer by Cromlix(4381)

Question 762411: in a chemistry class, 9 liters of a 40% silver iodide solution must be mixed with a 10% solution to get a 6% solution. how many liters of the 10% solution are needed?
Click here to see answer by josgarithmetic(39617)

Question 762586: A solution of 69% fertilizer is mixed with a solution of 20% fertilizer to form 490 liters of a 46% solution. How many liters of the 69% solution must be used?
Click here to see answer by josgarithmetic(39617)

Question 762597: Find the amount of a 6% acid solution and the amount of a 14% acid solution Pat Mayfield should combine to prepare 50cc (cubic centimeters) of a 12% solution.

Click here to see answer by josgarithmetic(39617)

Question 762944: Please help me solve this question: Amy needs to make 10L of 42% sulphuric acid solution. In the supply room , she finds bottles of 30% sulphuric acid solution and 60% sulphuric acid solution. What volume of each solution should she mix in order to make the 42% solution ?
So far I have the two equations : x+y= 10
0.3x+0.6y=0.42
Click here to see answer by Alan3354(69443)

Question 762963: you have a wooden board that measures 54 cm by 90 cm. you want to cut the board into identical square pieces with integer side lengths and use all of the wood
Click here to see answer by josgarithmetic(39617)

Question 763048: Peppermint spirit contains 5% peppermint oil. What volume of the spirit will contain 80ml of peppermint oil?
Click here to see answer by stanbon(75887)

Question 763048: Peppermint spirit contains 5% peppermint oil. What volume of the spirit will contain 80ml of peppermint oil?
Click here to see answer by josmiceli(19441)

Question 763098: A chemist needs to prepare 24oz of a 10% hydrochloric acid solution. Find the amount of 6% solution he should mix to get this solution. How many ounces of the 12% acid solution should be in the mixture? How many ounces of the 6% acid solution should be in the mixture?
Click here to see answer by josgarithmetic(39617)

Question 763119: How many mL of water should you add to 275 mL of a 9% solution to dilute it down to a 5% solution?
Click here to see answer by DrBeeee(684)

Question 763150: ive gone blank for this problem i dont know how to start off!!

A local theater sold 500 seats for an upcoming play. Ticket prices for adults were $63.00 and the ticket prices for children were $31.00. If the theater made $26,444.00 for the show, how many adults and how many children attended?
Click here to see answer by lwsshak3(11628)

Question 763249: Pure acid is to be added to a 10% acid solution to obtain 90L of 27% solution. How many Liters of 100% pure acid should be used to make the solution
Click here to see answer by lwsshak3(11628)

Question 763341: Monico needs to mix a 10% acid solution with a 60% acid solution to create 100 mL of a 15% solution. How many mL of each solution must Monico use?

Click here to see answer by josgarithmetic(39617)

Question 763347: a one peso coin has a mass of 60 grams.how many grams of copper art in a one peso coin containing 75% copper by mass?
Click here to see answer by Cromlix(4381)

Question 763699: 2 inches of heavy, wet snow are equivalent to an inch of rain. Estimate the water content of 5 inches of heavy, wet snow. The water content of 5 inches of snow is _____ inches
Click here to see answer by jim_thompson5910(35256)

Question 763695: how much pure alcohol should be added to 7l of 10% alcohol to increase the concentration to 30% alcohol?
Click here to see answer by josgarithmetic(39617)

Question 763949: A radiator contains 10 quarts of fluid, 30% of which is antifreeze. How much fluid should be drained and replaced with pure antifreeze so that the new mixture is 40% antifreeze?
Click here to see answer by stanbon(75887)

Question 764073: A silversmith combined pure silver that cost $17.80 per ounce with 50 oz of silver alloy that cost $8.50 per ounce. How many ounces of pure silver were used to make an alloy of silver costing $15.30 per ounce?
Click here to see answer by josmiceli(19441)

Question 764301: I have an 8oz solution which is 10% permitherin. How much water will I need to add to this solution to make this solution be .5% permitherin?
Or would it be better to mix as a ratio of water to permitherin?
Click here to see answer by stanbon(75887)

Question 764425: I am having trouble setting up the problem/equations for this question... Deoraj Bharath wishes to mix coffee worth $6 per lb with coffee worth $3 per lb to get 90 lb of a mixture worth $4 per lb. How many pounds of the $6 and the $3 coffees will be needed? Can you please help me set up and solve?

Click here to see answer by josgarithmetic(39617)

Question 764593: An alloy of copper and iron weighs 60 gms. It contains 70 percent copper. How much copper
should be added so that the new alloy formed contains 85 percent copper?
Click here to see answer by josgarithmetic(39617)

Question 764701: There is 15 liters of a 12 percent dye solution. How much water must be evaporated from this mixture to obtain a solution that is 20 percent dye? Assume that the total number of dye is not affected by the process of evaporation.
Click here to see answer by Theo(13342)

Question 764831: if the mix is 5 to 1, what would the mls to litres be?
Click here to see answer by Alan3354(69443)

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