Isolating a variable in the formula - math word problems - page 136 of 144
Number of problems found: 2866
- Calculate: 2884
Calculate: a / 2 + 3 * 4 - 5 * 4 + 3 b / 2 + 3 * (4 - 5) * (4 + 3) c / 2 + [3 * 4 - (5 * 4 + 3)] d / {2 + [3 * (4 - 5)] * 4} + 3 e / 2 + {3 * [4 - 5 * (4 + 3)]}
- Product 2873
Which number is five times less than the product of the numbers 15 and 7?
- Percentage 2853
The washing machine originally cost 450 €, but the shop reduced it by 12%. After the second discount, it cost € 364.32. What percentage did it reduce for the second time?
- Diagonally 2838
The square plot has an area of 324m². Calculate the length of the road that runs diagonally across the plot.
- Circular base
Find the radius of the circular base of the vessel, whose perimeter is 2.51 m. Write the result to one decimal place in meters. Via the π sign - Ludolph's number
- Creases 2795
Three punch cuts cost as much as two creases. How much does it cost if five punch cuts cost 2 euros 50 cents?
- Two-thirds 2786
Two-thirds of girls and half of boys learn Spanish in the classroom. There are twice as many boys in the class as there are girls. What part of the class is learning Spanish?
- Calculate 2782
The school paid CZK 25,400 for five identical boards and two printers for a computer. Calculate how much one board costs if one printer's price is 4500 CZK.
- Multiply 2762
Which number is to multiply the number by to get the number: a) 1 b) m
- Diagonal 2738
ABCD square has a diagonal length of 8 cm. What is the area of the square?
- Value
Determine the value of the following expressions: a) (23-25)·(4-5) b) (97-123):(18+8)
- Circle r,D
Calculate the diameter and radius of the circle if it has a length 26.59 cm.
- Floor
The rectangular floor of the living room has a length of 5.4 meters and a circumference of 17.2 meters. What is its width?
- Arc-sector
arc length = 17 cm area of sector = 55 cm² arc angle = ? the radius of the sector = ?
- Fifty-crown 2627
A notebook costs CZK m, and a pencil costs the same. The ruler costs CZK n. The brush costs CZK 6. Jirka bought 3 notebooks, 2 pencils, a ruler, and a brush. He paid with a fifty-crown note. How much did he get back?
- Square
The square's side length decreases by 25%, and its area is now 28 cm22 lower. Find the side of the original square.
- Tent
Calculate how many liters of air will fit in the tent with a shield in the shape of an isosceles right triangle with legs r = 3 m long, the height = 1.5 m, and a side length d = 5 m.
- Calculate 2548
Calculate the volume of a wooden box in the shape of a prism with the base of a rectangle if the box's width is 8 dm, the length is 14 dm, and the size of the body diagonal is 25 dm.
- Circle chord
Calculate the length of the chord of the circle with radius r = 10 cm, the length of which is equal to the distance from the circle's center.
- Flowerbed 2540
The flowerbed has a diamond shape with side a = 35 dm. The longer diagonal is 56 dm long. Calculate the area of the flowerbed.
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