Expression of a variable from the formula - practice for 12 year olds - page 13 of 35
Number of problems found: 691
- Graduates 40111
As many as 62.5% of residents at the business academy graduated with honors. How many high school graduates were there if 30 students graduated with honors? - Find unknown 2
Find unknown denominator: 2/3 -5/? = 1/4 - What is
What is the height of a cylinder whose surface size is 602.88 cm² and the area of its shell is 376.8 cm²? - Škoda cars
At 8:30 AM, Škoda 120 started from Prievidza at 60 km/h in the direction of Bratislava. At 9:00, started from Prievidza in the same direction as Škoda Rapid at 90 km/h. Where and when will Škoda Rapid catch up with Skoda 120?
- Tractor vs car
Behind the tractor, which was traveling at an average speed of 20 km/h, a car started in two hours and overtook it in 1 hour. At what speed was the car moving? - Students 39121
N boys go to class. There are 13 more girls. Today 4 girls and five boys are missing. How many students in this class are in school today? - Gamma angle
Find the magnitude of the gamma angle in triangle ABC if: α = 38° 56' and β = 47° 54'. - The parallelogram
The parallelogram has one side 2 dm long, which is one-sixth of its circumference. How many cm does the other side of the parallelogram measure? - Headphones
Charlie is saving money to buy a pair of headphones for $225. He has $37 so far, and he can save $15 per week. In how many weeks will he have enough money to buy the headphones?
- Calculate 38073
1. Calculate the volume of a cube whose edge is 3.6 dm long. 2. Calculate the edge's size if you know its surface S = 2166 mm². - What is 10
What is the measure of the square side whose area is (4x² + 28x+49) square units? - Inner angles
The magnitude of the internal angle at the central vertex C of the isosceles triangle ABC is 72°. The line p, parallel to the base of this triangle, divides the triangle into a trapezoid and a smaller triangle. How big are the inner angles of the trapezoi - Carpenter 36293
The carpenter did the work in 3 2/5 hours. What part of the work did he do in an hour? - The cube
The cube has a surface of 600 cm². What is its volume?
- Volume per time
The length of the cube-shaped tank edge is 4 m. A pump has a capacity of 200 l per minute. How long does fill take for a pump to fill a cube-shaped tank up to 75% of its height? - Gardens
The area of the square garden is 3/4 of the area of the triangular garden with sides of 80 m, 50 m, and 50 m. How many meters of fence do we need to fence a square garden? - Telco company
The upstairs communications company offers customers a special long-distance calling rate that includes a $0.10 per minute charge. Which of the following represents this fee schedule, where m represents the number of minutes and c is the call's overall co - Cyclists 33201
From Děčín and Ústí nad Labem, which are 24 km apart, two cyclists rode against each other at the same time. One drove at an average speed of 28 km/h, and the other, which left Ústí, drove at a speed of 20 km/h. How long did the cyclists meet, and at what - Strawberries 33183
Eva has four types of candies. He has ten strawberries, and of every other kind, he has candies. How many candies would she have left if she ate two sweets of each type?
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