Math practice for 13 year olds - page 96 of 435
Number of problems found: 8682
- Ordered pairs
Given: Set T = {(1,2), (2,3), (3,4), (4,5), (5,5), (6,7), (6,6), (7,8), (8,9), (9,9), (9, 10), (11,12), (12,13), (13,14), (15,16), (16,16), (17,18), (18,19), (20,21)} Find the probability of having an ordered pair wherein the second element is greater tha - Add number
Suppose the same number is added to the one near raider and denominator of math fractions seven and nine. The result is .9. What is the number? - A teacher 2
A teacher checked two sets of test papers. The first set took 3 3/4 hours. The second took 1 1/2 hours, and the third took 2 3/5 hours. How much faster did the teacher check the third set than the first and second? - Peter 10
Peter covered 1/2 of the journey on Monday, 1/4 of the remainder on Tuesday, and the rest on Wednesday. What fraction of the journey was covered on the two days? - The salary 2
The salary for a group of executives was listed as follows: 18 at P50,000:10 at P60,000; 8 at P75,000:2 at P90,000; and two at P10,000. The average salary is: - A vendor 3
A vendor borrowed PHP 150,000 from their cooperative. The rate of interest was 11.5% a year. How much interest does he pay to the bank at the end of one year? - A Piece 6
A piece of material measures 40 inches. Sara cuts the material into two pieces, one measuring 14 inches. Write an addition equation that we could use to find the length of the other piece of the material.
- After 6
After buying half a dozen eggs, three cans of sardines, and a pack of milk, Enya received a change of P0.50 from her P200. The pack of milk costs P105, and a can of sardines costs P16.50. How much is the price of an egg? - Tanya
Tanya bought three adult tickets and one children's ticket to a movie for $22.10. Li bought five adult tickets and four children's tickets for $43.60. Find the cost of one adult ticket and the cost of one children's ticket. - Markup 2
A store manager paid $74 for an item and set the selling price at $102.86. What was the percent markup? - Score on tests
On the first six tests in his Mathematics subject, his scores were 92, 82, 86, 93, 96, and 91. If he took the seventh test and raised the mean of his scores by exactly one point, what is his score on the 7th test? - Henry Henry has scored 72, 67, 82, and 79 on his Algebra tests. Use an inequality to find the scores he must take on the final exam to pass the course with an average of 77 or higher, given that the final exam counts as two tests.
- Jen and Steve
Jen and Steve plan to read a series of famous books. Jen has already read ten books and will continue to read three books per week. Steve, who hasn't started reading the series yet, will read four books per week. How long will it take for Steve to be read - Observation 76644
From the smaller observation tower, we see the top of the larger tower at an elevation angle of 23°, and the difference in their heights is 12 m. How far apart are the observation towers? - Salome
Salome bought 4 3/5 kilograms of oranges, 1 kilogram for 2 1/2 GEL (currency Georgian Lari), and 5 1/4 kilograms of apples, 1 kilogram for 1 4/5 GEL. In which fruit did Salome pay more, and by how much?
- A carpenter
A carpenter had a 10-meter piece of lumber from which he cut into two pieces. One of those pieces was 5 2/3 meters long. How long was the piece that remained? - Eddie
Eddie and Fran are scuba diving. Eddie is 35 meters below the surface of the water, and Fran is 8 meters directly above him. The following equation describes this situation: -35 + 8 = -27 What does -27 tell us? Choose one answer: ... - Dividing money 6
P 49,000 is to be divided among three children, X, Y, and Z. If X will receive double that of Y. Y will receive double that of Z, how much will Z will receive? - The population
A city's population increased from 977,760 in 1995 to 1,396,714 in 2005. What is the percentage of increase? Round your answer to the nearest tenth of a percent. - Pineapple juice
The caterer prepared 25 1/4 liters of pineapple juice, 15 3/5 liters of soursop juice, and 10 7/10 liters of orange juice. How many liters of juice were prepared in all?
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