A pharmacist wants to mix 40% alcohol solution with a 90% alchohoñ solution to get 500 mal 70% alcohol. How much of each solution should she use?

Q: A grocer is mixing 40 cent per lb. coffee with 60 cent per lb. coffee to make a mixture worth 54…

A: Given ,  A grocer is mixing 40 cent per lb. coffee with 60 cent per lb. coffee to make a mixture…

Q: the larger can is 7.5 inches tall and holds 128 ounces of paint. If the smaller can has a height of…

A: Given: Larger can is 7.5 inches tall and hold 128 ounces of paint.

Q: A customer in a coffee shop purchases a blend of two coffees: Kenyan, costing $3.50 a pound, and Sri…

A:

Q: One grade of tea, worth $3.40 per pound, is to be mixed with another grade worth $2 per pound to…

A: Let x and y be the quantity of grade-I and grade II tea in pounds, respectively.The total mixture is…

Q: A 100 LB bag of animal feed is 40% oats. How many pounds of oats must be added to this feed to…

A: Given 100 lb animal feed have 40% oats then amount of oats in the animal feed is given by,

Q: How much would one slice of cheese cost if the cheese sold for $8.95 per pound, and the slice count…

A:

Q: How many ounces of each of a 60% salt solution and a 30% salt solution should be mixed to obtain 270…

A:

Q: A chemist wishes to make 100 liters of 3% acid solution by mixing a 2% solution with a 5% solution.…

A: Let amount of 2% solution be x and amount of 5% be y. As we know we have to make 100 liters of…

Q: To make a weed and feed mixture, the Green Thumb Garden Shop mixesfertilizer worth $4.00/lb. with a…

A:

Q: The number of lemon poppyseed muffins that a baker makes each day is 40% of the total number of…

A:

Q: How many litres of a 10% alcohol solution must be mixed with 10 litres of a 34% alcohol solution to…

A: Given that  10% alcohol solution must be mixed with 10 litres of a 34% alcohol solution to get a 13%…

Q: One safe investment pays 2% per year, and a more risky investment pays 14% per year. A woman who has…

A: Given,Total investment = $144000Income required per year = $10560

Q: How much of an alloy that is 30% copper should be mixed with 600 ounces of an alloy that is 60%…

A: Let x ounces of 30% copper be mixed with 600 ounces of an alloy that is 60% copper in order to get…

Q: The manager of a specialty food store combined almonds that cost S4.50 perpound with walnuts that…

A: Let x lb of almonds and (100-x) lb of walnuts was mixed.  Almonds cost S4.50 per pound  So, x lb of…

Q: A chemistry teacher needs to mix a 40% salt solution with a 80% salt solution to make 20qt of a 50%…

A: Let the required amount of 40% salt solution be x quarts.

Q: Emanuel paid $39 more for phone service in December than in November.  He paid a total of $343 for…

A: Given that, total bill paid for the phone service in the month of November and December = $343…

Q: One safe investment pays 10% per year, and a more risky investment pays 18% per year. A woman who…

A: We have given : One safe investment pays 10% per year and one more risky investment pays 18% per…

Q: A photographer is mixing 2 liters of a 10% acetic acid solution with a 5% solution to get a 7%…

A: We have to find the amount of 5%solution to be added.

Q: A cleaning company used 3/4 cup of bleach for every 2 gallons of water for its cleaning solution. If…

A:

Q: A chemist wants to make 50ML of 16% acid solution by mixing a 13% acid solution and an 18% acid…

A: Let x be the   millilitre of 13% solution And y be the millilitre of 18% solution Chemist wants to…

Q: A grocer is mixing 40 cent per lb. coffee with 60 cent per lb. coffee to make a mixture worth 54c…

A: Let x lb of 40 cent coffee and (70-x) lb of 60 cent coffee should be mixed.  So total cost is:…

Q: A grocer mixes two kinds of nuts that cost $3.88 per pound and $4.88 per pound, to make 100 pounds…

A:

Q: Each batch of cookie mix need 0.4 cups of sugar, and each batch can make 16 cookies. If Ashley is…

A: Each bach of cookie mix needs 0.4 cups of sugar.  4 baches of cookie needs = 4 x 0.4 = 1.6

Q: A chemist needs 12L of a 40% alcohol solution. She must mix a 12% solution and a 50% solution. How…

A:

Q: Ms. Jones invested $25,000 in two accounts, one yielding 4% interest and the other yielding 8%. If…

A:

Q: For every 20 tables Melanie waits on she makes $40 dollars in tips, how much would she make in tips…

A: Given data: For every 20 tables Melanie waits on she makes $40 dollars in tips. Therefore, for one…

Q: How much of a 90% orange juice drink must be mixed with 12 gallons of a 40% orange juice drink to…

A: To be found : Amount of a 90% orange juice drink must be mixed with 12 gallons of a 40% orange juice…

Q: A photographer wants to mix 4 liters of a 6% acetic acid solution with a 10% solution to get a 7%…

A: Let x be the amount of 10% solution required.So, according to question:0.06(4) + 0.1x=0.07(x+4)

Q: A grocer wishes to mix sugar at 9 cents per pound with sugar at 6 cents per pound to make 60 pounds…

A:

Q: a woman has $470,000 invested in two rental properties. one yields 10% on the investment, and the…

A:

Q: nurse mixes 60cc of a 70% saline solution with a 10% solution to produce a 22% saline solution.how…

A:

Q: A photographer wants to mix 4 liters of 5% acetic acid solution with a 10% solution to get a 7%…

A:

Q: A chemist must mix 10L of a 40%acid solution with some 70% solution to get a 50% solution. How much…

A: A chemist must mix 10L of a 40%acid solution with some 70% solution to get a 50% solution. Let x L…

Q: A photographer wants to mix 2 liters of a 5% acetic acid solution with a 10% solution to get a 7%…

A: Let x be required amount of 10% solution.

Q: Allison needs 18 liters of a 5% saline solution. She has a 1% solution and a 10%solution available.…

A: Given:The 5% of saline solution contains a miture of 1% and 10% solutions.The total amount of saline…

Q: A recipe calls for 4 of a cup of flour to make one batch of doughnuts. If Cecilia wants to make 9…

A:

Q: How much of an alloy that is 20 % copper should be mixed with 100 ounces of an alloy that is 70 %…

A: Let x ounces of 20 % copper should be mixed  So the total amount of mixture is =(x+100) ounces

Q: A pharmacist wants to mix a 30% saline solution with a 10% saline solution to get 200 mL of a 12%…

A: Let x be the amount of 30% saline solution and y be the amount of 10% saline solution.

Q: a grocer wants to mix two kinds of coffee. One kind sells for $1.50 per pound,and the other sells…

A: Let the two types kinds of coffee be x and y pounds respectively.

Q: A garden store sells Kentucky bluegrass seed for $9 per pound and ryegrass seed for $3 per pound.…

A: Given:A garden store sells Kentucky bluegrass seed for $9 per pound and ryegrass seed for $3 per…

Q: A customer bought $120 worth of coffee at $15 per pound and $72 worth of coffee at $18 per pound. On…

A: Given:

Q: How many gallons of pure alcohol should be added to 40 gallons of a 25% alcohol to obtain a mixture…

A: Explanation and solutions is given below....

Q: A nurse mixes 60 cc of a 70% saline solution with a 20% saline solution to produce a 30% saline…

A:

Q: How much does it cost to buy 10 pizzas when each is $10.50?

A:

Q: The manager of a garden shop mixes grass seed that is 40% rye grass with 60 lb of grass seed that is…

A:

Q: A photographer wants to mix 4 liters of a 7% acetic acid solution with a 12% solution to get a 9%…

A: Let x be the volume of the 12% solution.

Q: A nurse mixes 60 cc of a 50% saline solution with a 30% saline solution to produce a 42% saline…

A:

Q: A cake recipe calls for 2/3 cup of sugar.if ray needs to prepare 6 batches of such recipe for a…

A: A cake recipe calls for 2/3 cup of sugar. So, for 6 batches suger needed 23×6 = 4 cups of suger.

Q: How much of an elixir that is 3% medication should a pharmacist mix with 10mL of an elixir that is…

A: Consider the given question,Let x mL of an elixir that is 3% medication should a pharmacist mix with…

Q: One grade of tea, worth $3.90 per pound, is to be mixed with another grade worth $2 per pound to…

A: Given information:

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.