There were 38 pupils in class. Each of them contributed $10 towards a class party. The form teacher contributed $25. 2/5 of the total amount contributed was spent on food. 1/9 of the remaining amount was spent on decoration. After spending $60 on drinks and some money on prizes, there was $28 left. (a) What was the total amount of contributed? (b) How much was spent on the prize?

Q: At 4pm​, Li rented bikes from​ Pearl's Wheels. She returned the bike at 8​pm, after riding 39…

A: a. Person L rented a bike at 4 pm and returned it at 8 pm after tiding 39 miles.

Q: cost $0.39 to produce a serving of lemonade. If you sell the lemonade for $3.50, what is the…

A: It's given that, cost to produce a serving of lemonade = $0.39 i.e., Cost price of lemonade =$0.39…

Q: Kathy, Keri, and Kim raised $10, $15, and $25, respectively, during a fund- raising drive. What…

A: Given, Fund raised by Kathy=$10 Fund raised by Keri=$15 Fund raised by Kim=$25

Q: Dante bought a sofa on sale for $133. This price was 35% of the original price. What was the…

A: The expression: "x% of y" can be written as x100×y.

Q: Joseph's lunch at a restaurant costs $13.00 , without tax. He leaves the waiter a tip of 17% of the…

A:

Q: Pilar’s rent increased by 4%. The increase was $38. What was the original amount of Pilar’s rent?

A: Consider the original amount of Pilar’s rent be 'x'.

Q: A flower shop sells small roses for $3 each and large roses for $5 each. On Thursday, the flower…

A:

Q: Maria brought $50 to spend on rides at the carnival. The rides cost $4 each. How many rides, r, has…

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Q: Tom worked for a week from Monday to Friday and was paid $7 per hour. He used 3/5 of his money he…

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Q: Hosea is given $100. Each day, he gains 1% on the total dollar amount he has, then he loses 1% of…

A:

Q: will he earn in four weeks? 2 Sally receives $5.00 a week for allowance. She is saving to buy a pair…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Christy wants to buy apples. Apples are $15 per pound. She wants to buy 15 pounds of apples. How…

A: Christy wants to buy apples. Apples are $15 per pound. She wants to buy 15 pounds of apples.

Q: A store spent $2,800.00 on advertising.  This is 12.0% of the store’s sales.  What is the dollar…

A:

Q: You went to a grocery store and bought a lot of groceries. 25% of the total money you spent was on…

A: Given that, you went to a grocery store and bought a lot of groceries. of the total money you spent…

Q: Abigail had 2 times the number of quarters (25 cents) in his bag than dimes (10 cents). a. If he had…

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Q: Luca is a salesperson. He sold a wooden bench for $76 and earned 20% commission. How much commission…

A:

Q: Sale! 80% OFF of the original price! Greta wants to buy a snowboard. The sale price is $56. What was…

A: If we have A amount of something and we want to find x% of A, then it can be obtained by the…

Q: Jerry bought a package of paper for $2.75. He had to pay sales tax of 8%, How much sales tax did…

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Q: You bought 0.875 kilograms of mixed nuts. What was the total cost, in dollars of the mixed nuts that…

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Q: Gina is at a store and buying chicken for a dinner. She picks up a package that is 3 1/3 pounds and…

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Q: The student council bought pizza for $900 to sell at the dance. They kept 10 pizzas to feed the…

A:

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.