Acceleration - practice for 12 year olds
Number of problems found: 28
- Daniw
Daniw Elementary School has a total of 98 pupils. If 3/7 of them are boys, how many of the pupils are girls? - There 34
There were 90 children at the birthday party. If 3/5 of them were boys, how many were girls? - 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? - The ratio 14
The ratio of boys to girls is 8:7. If there are 40 boys, how many girls are there in the class?
- Kilogram 82865
Write what part of a kilogram is: a) 10 g b) 45 g c) 7 g - Completely 82545
A granite cube with an edge length of 1 dm and a weight of 2.5 kg is completely immersed in a container of water. How much buoyancy does it lighten? How much pressure does the cube exert on the bottom of the container? - Body's 81509
What was the body's mass when it moved along a path of 70 dm and did 1.4 kJ of work? - Instantaneous 81036
Calculate the instantaneous free fall velocities at the end of the 1st, 3rd, 5th, and 7th seconds. Compile the results in a table. - Calculate 80793
The liquid has a specific gravity of γ = 9050 N. m-3. Calculate its specific gravity, the mass of 2 m³ of this liquid, and also of 3 m³ of this liquid.
- Hydrostatic 80790
The hydrostatic pressure at a depth of 6.5 m in an open liquid container is 79.5 kPa. What is the specific gravity of this liquid? - My mother
My mother has 15 grams of gold. How many grams were not used if a pair of earrings need 1 1/4 grams of gold? - There 27
There are 24 colored cubes in a box. Three-quarters of the cubes are red, four of the cubes are blue, and the rest are green. How many green cubes are in the box? One more blue cube got put into the box. What fraction of the cubes in the box are blue? - Greatest common factor
What is the GCF of 8 and 20? - Out of
Out of 500 oranges in a box, 3/25 are rotten, and 1/5 are kept for some guests. How many oranges are left in the box?
- Your chocolate
Your chocolate chip cookie recipe makes three dozen cookies, but you need four dozen cookies. If the recipe requires 1 7/8 cups of vegetable oil, 2 1/2 teaspoons of almond extract, and 3 1/2 cups of oatmeal, how many of these ingredients are necessary for - A parking
A parking garage has five levels below ground. Each level is the same height. Consider ground level to be 0. The depth of the fifth level of the parking garage is -118.5 ft. What is the depth of the first level of the parking garage? - Fractions and mixed numbers
Evaluate: a=5/6 + 3/4 b= 2 1/2 + 3 2/3 c= 4/8 - 3/8 d= 5/10 - 3/10 e= 11 - 4/5 f= 6/9 - 3/5 g= 11 2/3 - 7 5/6 h= 3 X 2/7 i= 4/5 X 10/12 j= 1/2 X 9 X 6/12 k= 3 2/5 X 2 1/4 l= 2 2/6 X 5 1/7 - Eighty 2
Eighty children went on a field trip. If three-fifths of them were boys, how many were girls? - Increases 69454
The car weighs 1850 kg and increases its speed from 27 to 81 km/h. How much has its kinetic energy increased?
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