Algebra - practice problems - page 8 of 292
Number of problems found: 5828
- Twice 2
Twice the difference between a number and 3 is equal to three times the sum of the number and 8. Find the number. - Intersection of two sets
A = {a, b, c, d, e, f, g, h, i}, B = { d, g, f, k, j, a}, find A ∩ B. - Rupees
Seventy coins of rs 10 and rs 50 are kept in a purse. Suppose the total value of the money in the purse is RS.1900. find the number of each type of coin. - Set complement
Let U = {1, 3, 5, 7, 9, 11} and A = {1, 5, 9}. What are the elements of A’? A. {3, 7, 11} B. {0} C. {1, 3, 9} D. {2, 4, 6, 8, 10}
- Simple coefficient
Find the value of k; if x = 3, y = 2 is a solution of the equation 2x + 3y = k. - Math class
There are a total of 30 students in a math class. The number of boys is 2 more than 3 times the number of girls. How many boys are in this math class? - School library 2
There are 3 times as many books in the town library as in the school library. The town library has 2,676 books. A. How many books are in the school library? B. Which of the following is a division equation that can be used to find the number of books in t - Negative number A number minus 7 is = 9. What is the number?
- Three 222
Three tractor drivers working on a private farm together played 24 hectares of land in a shift. The first drive played half the second, and the second 4 hectares more than the third. Calculate the number of hectares played by the first, second and third.
- What number What number must be added to both the numerator and denominator of 3/5 to get 5/6?
- The sum 30 The sum of 8 times a number and 5 times another number is 184. The first number minus the second number is -3. What are the numbers?
- A mixed school
In a mixed school, 5/9 of the pupils are boys. If there are 128 girls, how many pupils are there altogether? - The common difference 2
Find the common difference of an arithmetic progression (AP), whose first term is 5 and sum of its first 4 terms is half the sum of the next four terms. - Xero had
Xero had a piece of ribbon. He used 0.4 of it to tie 2 small boxes and 2 large boxes. The length of ribbon needed for a large box is 3 times the length of ribbon needed for a small box. Xero used 5/6 of the remaining ribbon to decorate the presents. a) Wh
- Joseph 2
Joseph visits the club on every fifth day, Harry visits on every 24th day, and Susan visits on every ninth day. If all three of them met at the club on a Sunday, then on which day will they meet again? - Von went
Von went to a mall to buy some things for his school projects. He spent 5/8 of his money in a bookstore and 1/5 of the remainder in a grocery store. If he spent P120 in the grocery store, how much money did he have at the start? How much money did he have - Carol 2
Carol bought 5 snow hats and 2 pairs of gloves. The hats were priced at $12, and each pair of gloves cost the same amount. If the total amount of Carol's purchase is $135, what was the cost of 1 pair of gloves? - In which In which of the following expressions does the number 16 fill in the blank so that the equation is true? Select all that apply. A) 8(___ + 3) = 32 + 24 B) 8(2 + 9) = ___ + 72 C) 4(7 + 4) = 28 + ___ D) 8(5 + 6) = 40 + ___
- Telephones
The cost of manufacturing x telephones by Josh Mobiles is given by C = 500 + 45x, and the revenue from selling these are given by R = 65x. How many telephones must be produced and sold in order to realize a profit?
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