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Question 445260: A mix of coffee is created by blending $7 a pound coffee with $4 a pound of coffee. If the mix is to be worth $144, and there are 24 pounds total, how many pounds of each should be in the mix?
Click here to see answer by rwm(914)

Question 445238: please help me solve this problem:
How many pounds of salt is in the kelp tank at the monterey bay aquarium when its volume is 200000gal and the seawater has a density of 8.5 pounds/gal
Click here to see answer by rwm(914)

Question 445053: a grocer mixes cookies worth 80 cents a kg with cookies worth 95 cents a kg making a mixture selling at 85 cents a kg. if he mixes 60 kilograms, how many kilograms of each kind does he use?
Click here to see answer by rwm(914)

Question 440552: A pharmacist mixed some 10%-saline solution with some 15%-saline solution to obtain 100 ml of a 12%-saline solution. How much of the 10%-saline solution did the pharmacist use in the mixture?
Click here to see answer by rwm(914)

Question 445483: The function H described by H(x)=2.75x + 71.48 can be used to predict the height, in centimeters of a woman whose humerus(the bone from the elbow to the shoulder) is x cm long. Predict the height of a woman whose humerous is 33 cm long.
Click here to see answer by nerdybill(7384)

Question 445508: Please help me solve this:
jean is making punch for her daughter. she combines 2 liters of soda, 1 pint of pineapple juice, 1 pint of orange juice, and 1 pint of apple juice. in u.s. measure, how much punch does she have? convert metric to english using unit fractions.
Click here to see answer by rwm(914)

Question 445493: Media Services charges $30.00 for a phone and $20.00 for its economy plans. Find the model that determines the total cost C(t) of operating a media plan for t months.
Click here to see answer by rwm(914)

Question 445544: Find how many quarts of 6% butterfat milk and 3% butterfat milk should be mixed to yield 30 quarts of 5% butter milk
Click here to see answer by stanbon(75887)

Question 445609: mr. whitney is three times as old as his son. twelve years from now he will only be twice as old. what are their ages now?
Click here to see answer by jorel1380(3719)

Question 445607: how many kilograms of tea worth $4.95 a kg should be blended with tea worth $3.87 a kg to make 40kgs of blended tea to sell at $4.35 a kg?
Click here to see answer by jorel1380(3719)

Question 445545: The total length of two ships is 1759 feet. The difference in there lengths is 19 feet.A Find the length of each ship. B If a football field has a length of 100yards, determine the length of the longer ship in terms of number of football fields
Click here to see answer by jorel1380(3719)

Question 445611: the cooling system in ann's car contains 19 liters of 30% antifreeze. how much coolant must be drained out and replaced with 80% antifreeze so that the system will contain 50% antifreeze. how much of the original coolant will be left in the car?
Click here to see answer by ankor@dixie-net.com(22740)

Question 445811: In chemistry class, 10 liters of a 15% alcohol solution must be mixed with a 75% alcohol solution to get a 50% alcohol solution. How many liters of the 75% alcohol solution should be added ?

Click here to see answer by jorel1380(3719)

Question 445863: If a merchant has two types of tea, one work $2.70 per kilogram and the other worth $3.00 per kilogram, how many kilograms of each type should the merchant use in order to produce 30 kilograms of a blend that is worth $2.95 per kilogram?
Click here to see answer by mananth(16946)

Question 445909: Tank A contains a mixture of 10 gallons water& 5 gallons pure alcohol.Tank B has 12 gallons water& 3 gallons pure alcohol.How many gallons should be taken from each tank and combined in order to obtain 8 gallon soln containing 25%alchl by vol...?
Click here to see answer by stanbon(75887)

Question 445936: A liquid fertilizer needs to mixed 2 cups to 4 gallons of water. If you have 3 cups of fertilizer, how much water needs to be added?
Click here to see answer by jorel1380(3719)

Question 445527: How do you make 25 mL of a 7.8% saline solution from two solutions of 5.6% saline and 18.8% saline? Round to the hundredths.
Could you please show step to step on how it was solved. Thanks!
Click here to see answer by jorel1380(3719)

Question 432655: In chemistry class, Todd Corbin has 1 liter of a 20% sulfuric acid solution. How much of 12% sulfuric acid solution must he mix with the 1 liter of 20% to make a 15% sulfuric acid solution?
Click here to see answer by jorel1380(3719)

Question 432209: The sum of the squares of two consecutive positive numbers is 265. Find both numbers.
Click here to see answer by jorel1380(3719)

Question 432203: The first painter can paint a room in 6 hours, and the second can paint the same room in 8 hours.How long will it take if they work together?
Click here to see answer by jorel1380(3719)

Question 446085: how many gallons 65%antifreeze and how many 20% antifreeze should be mixed up to obtain 50 gallons of 56% mixture of antifreeze?
Click here to see answer by mananth(16946)

Question 446083: how many gallons of 70% antifreeze should be mixed with 10 gallons of 30% antifreeze to obtain 45% antifreeze.
Click here to see answer by mananth(16946)

Question 446185: im REALLY bad at word problems so im preparing for the cst with some of the old release question and heres one im having trouble turning this into a graph:
A pharmacist mixed some 10%-saline solution
with some 15%-saline solution to obtain 100 mL of a 12%-saline solution. How much of the 10%-saline solution did the pharmacist use in the mixture?
A 60 mL
B 45 mL
C 40 mL
D 25 mL
Click here to see answer by mananth(16946)

Question 446182: How much of pure alcohol is in 120L OF 25% Alcohol?
Click here to see answer by robertb(5830)

Question 446191: Can someone help me with this problem?
Please help with this problem
6300 is invested, part of it at 10% and part of it at 8%. For a cerain year, the total is 566. How much was invest at each rate
Click here to see answer by robertb(5830)

Question 446188: An Assistant receives a 10 percent raise bringing the salary to 47,651 what was the salary before the raise?
Click here to see answer by rwm(914)

Question 446187: An Assistant receives a 10 percent raise bringing the salary to 47,651. What was the salary before the raise?
Click here to see answer by rwm(914)

Question 446189: Can someone please help me with this question?
Fran swims at a rate of speed of 2.6km/hr in still water, the lazy river flows at a speed of 0.4km/hr. How long will it take Fran to swim 1. km upstream?
Click here to see answer by rwm(914)

Question 445945: could someone tell me if this problem is correct?
Find the slope of if it exists of the line containing the pair of points (3,10) and (4-10) I have 4-3. Is that correct, if not, can you give me the correct answer. thank you in advance
Click here to see answer by rwm(914)

Question 446219: find the cost per ounce of sunscreen made from 80 oz of lotion that cost $3.00 per ounce and 20 oz of lotion $8.50 per ounce.
Click here to see answer by rwm(914)

Question 446294: Media services charge $40 for a phone and $30/month for its economy pla. The equation c=30t+40 describes the total cost, c, of operating a media services phone for t months. The total cost for 7 months of service$________, and If a cutomer has only $110 available, how many months of service can she receive?
Click here to see answer by jorel1380(3719)

Question 446302: Find how many quarts of 6% buttermilk and 3% butterfat milk should be mixed yield 30 quarts of 4% butterfat milk.
The mixture should contain________ quarts of the 6% buttermilk
The mixture should contain _______ quarts of the 3% milk
Click here to see answer by jorel1380(3719)

Question 446430: Harry needs to mix a 10% iodine solution with a 35% iodine solution to produce 50 gallons of a 23% iodine solution. How much of each should he use?
Click here to see answer by rwm(914)

Question 445930: Can someone help me solve these problems?
Find an equation of the line containing the given pair of points:
(3,2) and (9,7)
_______________________________________________________
Find the value function
f(x)=x^3
f(1)=
Click here to see answer by rwm(914)

Question 446437: fran swims at a speed of 2.6km in still water, the lazy river flows at a speed of 0.2kh/h. How long will it take Fran to swim 3.6km upstream?

Click here to see answer by rwm(914)

Question 446440: When three pumps, A, B, C, are running together, they can pump 3200 gal per hour. When only A and B are running, 1800 gal per hour can be pumped, when only A and C are running 2000 gal_per hour can be pumped. What is the pumping capacity of each pump?
_______________________________________________________
$6300 is invested, part of it at !0% and part of it at 6%. For a certain year, the total yield is $502.00 How much was invested at each rate?
How much was invested at 10%
How much was invested at 6%
Click here to see answer by mananth(16946)

Question 446543: How much water must be added to 6 ounces of a 20% acid solution to obtain a 15% acid solution?

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

Question 446499: How much of an alloy that is 40% copper should be mixed with 100 ounces of an alloy that is 60% copper in order to get an alloy that is 50% copper?
Click here to see answer by ewatrrr(24785)

Question 446442: The length of a table is 4m greater than the width. the area is 60m^2. Find the dimensions of the table
Click here to see answer by jorel1380(3719)

Question 432177: Chemist has 20% and 50% solution of acid available. how many liters of each solution should be mixed to obtain 10 liters of 40% acid solution?
Click here to see answer by jorel1380(3719)

Question 432346: The cost of mailing a package varies directly as the weight.If a 2-oz package costs 44cents to mail, how much does it cost to mail a 15-oz package?
Click here to see answer by jorel1380(3719)

Question 432753: how many gallons of a 60% antifreeze solution must be mixed with 70 gallons of 30% antifreeze to get a mixture that is 50% antifreeze?
Click here to see answer by jorel1380(3719)

Question 433106: A chemist needs to mix a 10% acid solution with a 60% acid solution to obtain 50 milliliters of a 30% acid solution. How many milliliters of each solution must be used?
Click here to see answer by jorel1380(3719)

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