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: Jerry and Jenny are setting up a lemonade stand. They have 180 cups of lemonade to sell. They spill…

A: Given: Jerry and Jenny are setting up a lemonade stand. They have 180 cups of lemonade to sell. They…

Q: A doctor prescribes 4 oz of 7.5% hydrocortisone to a patient. Hydrocortisone is available in 10% and…

A:

Q: Your father is planning to cook for 25 people using a recipe that specifies two and a half cups of…

A: Given, Father is planning to cook for 25 people using a recipe that specifies two and a half cups of…

Q: After selling 15% hectares of his 35 % hectares farmland, the owner bought two other parcels of…

A:

Q: mixes 1/6 cup of blue paint for every 1/3 cup of red paint to make purple paint. How many cups of…

A: Given query is to find the amount of red paint to be mixed.

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

A:

Q: At Jessica Java, a new blend of coffee is featured each week. This week, Jessica is creating a…

A: Brazilian beans cost per kg = $12 Ethiopian beans cost per kg = $17 Let the amount of Brazilian…

Q: How much of pure (100%) orange juice must be added to 35 gallons of a 21% orange juice solution to…

A:

Q: One solution was 20% iodine and another was 60% iodine. How much of each should be used to get 360…

A:

Q: Jim wants to buy a 5kg mixture of chocolates. If one Kind šels for 31.80 per Kg and another for,…

A:

Q: A chemistry teacher needs to mix a 30% salt solution with a 70% salt solution to make 20 qt of a 40%…

A: Given that A chemistry teacher needs to mix a 30% salt solution with a 70% salt solution to make 20…

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.