Maths practice for 14 year olds - page 288 of 382
Number of problems found: 7626
- Braking acceleration
At the start of braking, the car had a speed of 72 km h at -1. It stopped on a track of 50 m. What was the acceleration, and how long did the braking last? - Apples
I picked 600 kg of apples this year. Autumn's apples were four times more plentiful than summer's. How many kilograms do I pick in the summer, and how many winter apples? - Ice cream cone
How many cm² of dough are needed to produce an ice cream cone if it is to hold 0.3 l of ice cream and its height is to be 15 cm. Add 8% for folds. 1. Convert litres into cm³ 2. Decide which data you can calculate first and from what formula. 3. Calculate - Exponent equation
Solve the equation: (4096^x) · 8! = 161280 - Candy - MO
Gretel deploys different numbers to the vertex of a regular octagon, from one to eight candy. Peter can then choose which three piles of candy to give Gretel others retain. The only requirement is that the three piles lie at the vertices of an isosceles t - Direct indirect proportion
Decide if the variables are in a relation of direct or indirect proportionality. 1st variable 2nd variable does not change: a) number of bottles of syrup amount paid for them price per 1 bottle b) length of the side of a rhombus length of the correspondin - Unions now
The plant has 1,250 employees. The Trade Unions (former ROH, OH) is 18% male and 23% female. Plant management reported that 20% of all employees are in the trade union. How many men and women are in the plant, and how many are men and women in trade union - Fertilizer
A meadow with an area of 1,500 m² was fertilised with 12 kg of urea. Urea contains 45% nitrogen. How much nitrogen was applied per 1 m²? - Cows
The agricultural cooperative has increased the number of housed cows by 14% to 285 units. How many cows increased the agricultural cooperative number of cows? - Circle area
Find the area of the circle that is a) inscribed, b) described 6.32 cm². - Cuboid easy
The cuboid has the dimensions a = 12 cm, b = 9 cm, c = 36 cm. Calculate the length of the body diagonal of the cuboid. - Work together
Michael and Dorota would do the work together in 2.25 hours. If Dorota had to do it herself, it would have taken her 6 hours longer than Michael. Determine when Dorota will do the work herself and when Michael will do it himself. - Rings groups
Twenty-seven pupils attend some groups. Fourteen pupils attend the Dance group, 21 in the sports group, and 16 in the dramatic group. Dance and sporting attend nine pupils, dance and drama six pupils, and sporty and dramatic 11 pupils. How many pupils att - Models
On the catwalk there are three models: Miss Pink, Green, and Blue. Each of them is wearing a single-coloured dress: pink, green, and blue. "Strange," said Miss Blue. "We are called Pink, Green, and Blue, our dresses are pink, green, and blue, but none of - Calculate sphere
Calculate the volume of a sphere with a diameter of 15 cm. - Triangle area
In triangle ABC, we connected the centers of the sides, and we got a smaller triangle with an area of 14 cm². What is the area of triangle ABC in square centimeters? - Rectangle diagonals
Calculate for me the length of the diagonal of a rectangle whose size is 7 cm greater than its width and whose perimeter is 34 centimeters. The dimensions of the rectangle are expressed in natural numbers. - Potatoes
Danielle and Michael would jointly dig potatoes for 7.5 hours. But if Danielle was working alone, she would take 2.5 hours more than if he were working with Michael. Determine how long Michael would take alone and how long Danielle would take alone. - Work time
Danielle and Michael would dig potatoes together in 7.5 hours. But if Danielle worked alone, it would take her 2.5 hours more than Michael. Find how long it would take Michael alone and how long it would take Danielle alone. - Baskets of apples Grandfather gathered apples into baskets. He filled one large and three small baskets. Small baskets are identical; each can hold 3 kg of apples less than in a large basket. In small baskets together, 3 kg of apples over a large basket. How many kilograms
Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
