Grade - math word problems - page 840 of 944
Number of problems found: 18875
- Rectangle - parallelogram
A rectangle is circumscribed by a circle with a radius of 5 cm. The short side of the rectangle measures 6 cm. Calculate the perimeter of a parallelogram ABCD, whose vertices are the midpoints of the sides of the rectangle.
- Concert
At a Concert, sold 150 tickets for CZK 360, 235 tickets for 240 CZK, and 412 for 180 CZK. How much were the total revenues for tickets?
- Videotape
Viera bought a videotape on which she could record programs with a total length of 240 minutes. She recorded a sci-fi movie, 1 hour and 28 minutes long, five ten-minute sessions, and "aerobics at home." Can she fit on the tape even the film of Robin Hood,
- The port
Four ships Berthed in the port. Together, sail from a port. The first ship will return to port every two weeks, the second after four weeks, the third after eight weeks, and the fourth after 12 weeks. After how many weeks do all the boats meet at the port
- Rounding
What width and length in centimeters may have rectangle land when round the dimensions to the meter, the width is 5 m and length 7 meters?
- Grandmother
The children's grandmother bought two identical toy cars and a doll. Total paid 492 Kč. The doll was 150 Kč. How much money cost one toy car?
- TVs
Production of television sets increased from 3,500 units to 4,200 units. Calculate the percentage of production increase.
- Exchanged 2191
Task A: Anna has 14 stamps with animals. Because this morning, she gave Viera 3 stamps with monkeys. How many stamps did the animals have before? Task b: In the evening, Anna exchanged four stamps with lions for two stamps with monkeys. How many stamps di
- Minutes
Determine the difference in minutes: T1 = 2 3/20 h T2 = 2.3 h
- Sweets
Three chocolates and seven cakes cost 85 CZK. Two chocolates and six cakes cost 86 CZK. How much are five chocolates and nine cakes? I wonder how to get the result, but only by logic, without using a system of equations.
- MO circles
Juro built the ABCD square with a 12 cm side. In this square, he scattered a quarter circle with a center at point B passing through point A and a semicircle l with a center at the center of the BC side and passed point B. He would still build a circle th
- Medicine
We test medicine on six patients. For all, the drug doesn't work. If the drug success rate of 20%, what is the probability that medicine does not work?
- Freezer
The temperature is -8 degrees Celsius in the freezer. The outside temperature is 2 degrees Celsius. If we open the door, it takes one minute to change the temperature by one degree Celsius. How many minutes the temperature in the freezer will rise?
- Classroom
In a classroom are 30 students, and boys are four times more than girls. How many boys are in the class?
- Bicycle wheels
The driving wheel of a bicycle has 54 teeth. The driven wheel has 22 teeth. How many revolutions will meet the same teeth after?
- Garden
The garden has a rectangular shape, a circumference of 130 m, and an area of 800.25 m². Calculate the dimensions of the garden.
- Cube 5
The surface of the cube is 15.36 dm². How will this cube's surface area change if the edges' length is reduced by 2 cm?
- Regular octagon
Draw the regular octagon ABCDEFGH inscribed with the circle k (S; r = 2.5 cm). Select point S' so that |SS'| = 4.5 cm. Draw S (S'): ABCDEFGH - A'B'C'D'E'F'G'H'.
- Metal sheet
The box has the shape of a cube with an edge length of 50 cm. How much m² of sheet metal is needed to beat a box if we add 20% on the folds of the lid and walls?
- Bricks
Openings in perforated bricks occupy 10%, and brick has dimensions of 30 cm, 15 cm, and 7.5 cm. Calculate a) the weight of a perforated brick if you know that the density of the full brick material is p = 1800 kg/m³ (1.8 kg/dm³) b) the number of perforate
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