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…

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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.

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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'.

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Q: Derek’s shop sells shirts and pants. A pair of pants is sold at $48 and a shirt is sold at 3/4 the…

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

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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…

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Q: Three children shared $200. Andrew got 15% of the total sum. Bryan got - as much a) What percentage…

A: first we will find what amount of money each children got. given Total shared money = $200

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

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

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Q: Clara wants to sell 1000 tickets for a fund raising event. The winner of the raffle will win 10,000…

A: Given: Clara wants to sell 1000 tickets for a fund raising event. The winner of the raffle will win…

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A: NOTE: Refresh your page if you can't see any equations. . initially, Ahmad  has  dollars   dollars…

Q: Carol bought 10 pens at 89¢ per pen. She paid for the pens with a $10 bill. How much change did she…

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

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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.