Functions - practice for 13 year olds - page 3 of 149
Number of problems found: 2978
- Three in ratio 2
If 200 is divided into the ratio of 1:2:5, What is the middle quantity? - Healthier snacks
In hopes of encouraging healthier snacks at school, Dan brought in a tray of carrot sticks and apple slices to share. The tray had a total of 40 snacks, of which 60% were carrot sticks. How many carrot sticks did Dan bring? - The sum 43
The sum of Rs. 820 will be divided among Ali, Fakhar, and Zahid according to the ratio 3 : 4 : 5. How much does each receive? - China's
China's population in 2001 was 1276300000, and in 2005 it was 1307600000. Find the increase in population.
- Trigonometric fx
When an acute angle φ is in the standard position, its terminal side passes through point P (1,3). Find trigonometric functions of angle θ : sin φ, cos φ, tan φ, cotan φ. - The graph
Given that (-5,8) is on the graph of f(x), find the corresponding point for the function f(x)-2. - Bag of popcorn
The average cost of a bag of popcorn at the movie theater was $3.50 in 1995 and $4.75 in 2015. Find the percent of change in the price of a bag of popcorn from 1995 to 2015 and classify it as a percent increase or percent decrease. - Cesar
Cesar increased the amount of water he drinks each day from 64 ounces to 72 ounces. By what percentage did Cesar increase the amount of water he drinks each day? - Cheesecakes
In a survey, 50% of people preferred fruit cake, 15% preferred sponge cake, and the remainder preferred cheesecake. What percentage of people liked cheesecake the best?
- The ratio 18
The ratio of dogs to cats at a shelter is 2 to 7. If there are 12 dogs, then how many cats are in the shelter? - The ratio 17
The ratio of tomatoes to red apples is 2:5. If there are 20 tomatoes, how many red apples are there? - It takes 2
It takes 7 1/5 seconds for a jet to fly 1 km. How long does it take for this jet to fly 3/4 of a km? - 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? - The ratio 16
Express the following ratio in simplest form: 90:100
- Solution mg/ml
If 70 ml of solution contains 280mg of drug, how many milligrams of drugs are in 50 ml of solution? - Convert 8
Convert 11/2 into a percent? - Eggs in basket
If the eggs in a basket are removed twice at a time, one will remain. Two eggs will remain if the eggs are removed three at a time. If the eggs are removed four, five, or six at a time, the three, four, and five eggs will remain, respectively. However, no - Marcos 2
Marcos is bringing 36 cookies to his book club, but he's not sure how many people will be there. He wants to write an equation that shows how many cookies each person will get in terms of how many people (symbol n) are there. - A recipe 6
A recipe requires 2 cups of milk for every 3 cups of flour. If you use 8 cups of milk, how many cups of flour do you need?
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