Algebra - math word problems - page 26 of 312
Number of problems found: 6221
- Three numbers
In three numbers, the first number is double the second number, and the second number is double the third. The average of the numbers is 21. Find the least number. - Average and mean
Suppose that the average of the four values, {-1, x, -2x, 3}, is equal to x - 1. Find the value of x. - Divisors 7
If 540=2²×3³×5, what is the number of all factors of 540? - One kilometer race
In a 1 km race, student A beats student B by 48 meters or 12 seconds. Find the time taken by student A in this race. - Workers
If x men can complete a work in 8 days and x+4 men can complete the same work in 6 days. Find the value of x. - Library and gym
In a town, 7/8 of the population has a library card, and 3/4 has a gym membership. What fraction of the population has either a library card or a gym membership? - Coefficient of skewness
For the data set whose Karl Pearson's Coefficient of skewness = -2.25, variance is 16, and Mean is 35, then its median value will be: - Kenji
Kenji earned the test scores below in English class. {79, 91, 93, 85, 86, and 88} After his next test, his mean and median scores both changed to 88. What does he earn on his test? - Temperature - linear function
In the morning, at 08:00 hours, the temperature was -8 °C, and in the afternoon, at 16:00 hours, the temperature was 24 °C. Assuming that the temperature changes steadily, what was the temperature at 13:00 hours, and what was the time when the temperature - Miss Patel
Miss Patel thinks her class of 20 students will average 95 on a math test. Before she grades the last student's test, the class average is 97. What is the lowest possible score on the 20th test for the class to average 95? - The mean
The mean of four numbers is 5, and the mean of three different numbers is 12. What is the mean of the seven numbers together? - Logical and
At a football game, 8/15 of the fans wore team T-shirts. Of those wearing team T-shirts, 1/4 also wore team hats. What fraction game wore both a team T-shirt and a team hat? - A gym
The A gym offers two packages for yearly memberships. The first plan costs $50 to be a member. Then, when you visit the gum, it is $5 to get in. The second plan costs $200, but it only costs $2 to get in each time you visit. How many visits would it take - The average 14 The average of the present ages of Susan and Beata is 36 years .If Susan is 8 years older than Beata. What is the Beata's present age?
- The average 12
The average of the first five numbers drawn was 2499. the first four numbers were 4165, 320, 7142, and 64. What was the fifth number? - The average 10
The average of three fractions is 2 3/8. If two of the fractions are 2 1/5 and 1 2/3, what is the total value of the three fractions? - The linear
The linear equation 5y-3x-4=0 Can be written in the form y=mx+c. Find the values of m and c. - Insert two > GP
If 4, 36, 324 are in a geometric progression, insert two more numbers into this progression so that it still forms a geometric progression. - The median 3
The median of the following observations arranged in ascending order is 64: 27, 31, 46, 52, x, x + 4, 71, 79, 85, 90 Find the value of x. - River current
In a river, a man takes 3 hours in rowing 3 km upstream or 15 km downstream. What is the speed of the current?
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