Basic operations and concepts - practice problems - page 2 of 332
Number of problems found: 6631
- Population - growth
China's population in 2001 was 1276300000, and in 2005 it was 1307600000. Find the increase in population. - The graph
Given that (-5,8) is on the graph of f(x), find the corresponding point for the function f(x)-2. - Children
Of the estimated 2 billion children living in the developing world, approximately 400 million do not have access to safe drinking water. Approximately what percentage of children in developing countries do not have safe water to drink? - Express 72
Express the percentage to a fraction. 15% - Convert 8 Convert 11/2 into a percent?
- One group
In a meeting of 100 people, there are 45 women, what fraction of the number of the meeting are men. - First year
First-year students enrolled at FEI were determined to be 2,000. Fifty-five percent are electronics students. How many are IT students? (Present your solution plus answer) - Your brownie
Your brownie recipe calls for 5 cups of butter to make 80 brownies. You want to make 100 brownies for your family. How much butter should you use? - Hannah 2
Hannah finds purple, blue, and silver space rocks while exploring. 2/3 of the rocks are purple, and 3/4 of the remainder are blue. If there are 3 silver rocks, how many space rocks does Hannah have? - Forty 8
Forty students took the math test. Thirty-two students received an A, and the rest received a B. What percent of the students received a B? - Represent 14 Represent 10% as a fraction reduced to the lowest term.
- Black to brown ratio
In a box, there are 20 pairs of socks, of which 65% are black and the rest are brown. What's the ratio of black and brown socks? - A fruit 3
A fruit market sells mangoes and apricots in a ratio of 3:2. If their sales of mangoes and apricots combined came to 35, how many apricots did they sell? - 670 person
Six hundred seventy people were tested for RT-PCR. As a result, 80% tested negative. How many tested positive? - Percent increase
What is the base figure if 2000 is the end figure and the base figure was increased by 18% - Terrance
Terrance budgets $435 of his salary for car expenses. His salary is $2 900. What percent of his salary is budgeted for car expenses? - Ratio 28
Ratio 3 to 2. If a total of 30 dogs and cats were in the neighborhood, how many cats were there? - Employees 16
There are 3 full-time employees in your office for every 5 who are part-time. If there are 25 part-time employees, how many full-time employees are there? - Enrollment 2 Enrollment in the evening college program increased from 580 last year to 620 students this year. What was the rate of increase? Please round off your answer to two decimal places.
- Percent increase 2.22 to 2.52 What is the percentage increase?
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