Maths practice for 14 year olds - page 115 of 379
Number of problems found: 7575
- Polygon - area coordinates
Find the perimeter and the area of the polygon with the given vertices. T (2,7), U (2,9), V (5,9), W (5,7) - Beef taxation
In December, beef cost € 5.71 per 1 kg. How much should the price of 2.5 kg of beef change if VAT changed from 20% to 10%? How much will 2.5kg cost in January? - Percentages 8
What percent (%) is the amount of 12 from a base of 69? Round the final result into two decimals. - Quadrant four
Which point is located in Quadrant IV? A coordinate plane. A(-8, 6) B(-8, -6) C(8, -6) D(8, 6) - Tyreek
Tyreek, Antuan, and Alex are given a total of $3500 to be shared among themselves in the ratio of 3:5:12. How much does each get money? - Boats 2
Three-quarters of the boats in the marina are white. 4/7 out of the remaining boats are blue, and the rest are red if there are nine red boats. How many boats are in the marina? - The sum 9
The sum of two integers is 4. Their difference is 8. What are these two integers?
- Chocolate bar
Shen's chocolate bar is 54% cocoa. If the weight of the chocolate bar is 54 grams, how many grams of cocoa does it contain? Round your answer to the nearest tenth. - The sum 8
The sum of the two numbers is 21. If three times the smaller numbers are two less than twice the larger number, find the two numbers. - Flowerbeds
There are three square flower beds on the square grassy plot. What percentage is the grassed part of the land when one side is 35 m, and the side of the flowerbed is 10 m? - Draw a triangle
We have line segments with lengths of 3cm, 5cm, 6cm, 7cm, and 9cm. What is the probability in % that if I randomly select three of them, I will be able to draw a triangle? - Consider 2
Consider the following formula: y = 3 ( x + 5 ) ( x - 2 ). Which of the following formulas is equivalent to this one? A. Y=3x²+9x-30 B. Y=x²+3x-10 C. Y=3x²+3x-10 D. Y=3x²+3x-30. - The spinner
The spinner below is spun 12 times. It landed on I 4 times, II 7 times, and III 1 time. What is the difference between the experimental and theoretical probabilities of landing on the II? - A toy
A toy store buys kites from a supplier for k dollars. The store owner decides to mark up the price of each kite by 30%. What is the retail price of a kite that the supplier sells for $60? - Limousine rent
Hana rented a limousine for prom. There was a one-time charge of $100 plus an hourly rate of $45. Her total cost for the night was $347.50. How many hours did Hana rent the limo for?
- Profit, revenue, cost
Profit, P(x), is the difference between revenue, R(x), and cost, C(x), so P(x) = R(x) - C(x). Which expression represents P(x), if R(x) = 3x3 + 2x - 1 and C(x) = x4 - x2 + 2x + 3? - Michael 2
Michael has a 35-foot ladder leaning against the side of his house. If the bottom of the ladder is 21 feet away from his house, how many feet above the ground does the ladder touch the house? - In the library
The library at Lenape Elementary School has 2/5 as many fiction books as nonfiction books. There are 56 books in the school library. How many books are fiction books? - 6 plates
Six plates and 5 cups cost 37.50 dollars. Seven plates and 6 cups 44.10 dollars. Each plate costs the same amount as the other cup. What is the cost of 1 plate? What is the price of 1 cup? - James 4
James, Priya, and Siobhan work in a grocery store. James makes 8.00 per hour. Priya makes 40% more than James, and Siobhan makes 5% less than Priya. How much does Siobhan make per hour?
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