Percentages + length - practice problems - page 6 of 8
Number of problems found: 152
- Plot
The length of the rectangle is 8, smaller than three times the width. If we increase the width by 5% of the length and the length is reduced by 14% of the width, the circumference of the rectangle will be increased by 30 m. What are the dimensions of the - Isosceles right triangle
The area of an isosceles right triangle is 18 dm². Calculate the length of its base. - Rectangle
Find the dimensions of the rectangle, whose perimeter is 108 cm and the length is 25% larger than the width. - Trees
A young tree is 16 inches tall. One year later, it is 20 inches tall. What is the percent increase in height?
- Perimeter 4497
The width of the rectangle is 65% of the length. Calculate the lengths of the sides of a rectangle if its perimeter is 132dm. - Fuel economy
How many kilometers is sufficient petrol in the cylinder fuel tank with a diameter of 40 cm and the base of tank length of 1 m when it is filled to 60%, and if the car consumes 15 liters per 100 km? - Frameworks is bad
Calculate how much percent will increase an HTML document's length if any ASCII character is unnecessarily encoded as a hexadecimal HTML entity composed of six characters (ampersand, grid ; , x, two hex digits, and the semicolon). Ie. space as: &; x20 - Calculate 4254
The prism's base is a diamond with a side length of 6 cm and a height of 4 cm. The height of the prism is 125% greater than the length of the side of the diamond. Calculate the surface area and volume of the prism. - The creek
Workers cleaned the creek within three days. On the first day, cleanse one-fifth of the creek's length, the next day 40% of the stream's length, and the third day, 8 km length of the creek. How long is a creek?
- Hall
The rectangular hall will have to pave with square tiles with a side length of 15 cm. The hall has a length of 18 meters and a width of 3 m. How many tiles need to buy if 2 percent of the amount is disrupted during the work? - Percentage 3481
We turned a sphere with the largest possible radius from a cube with an edge length of 8 cm. Calculate the volume of the cube, the ball, and the percentage of waste when turning. - Church roof
The roof of the church tower has the shape of a regular tetrahedral pyramid with a base edge length of 5.4 meters and a height of 5 m. It was found that the 27% covering of the roof area needs to be corrected. What amount of material will be required? - The tent
The tent shape of a regular quadrilateral pyramid has a base edge length a = 2 m and a height v = 1.8 m. How many m² of cloth did we need to make the tent if we have to add 7% of the seams? How many m³ of air will be in the tent? - Three-stage 3272
In the three-stage races with a total length of 550 km, cyclists drove 38% in the first and 27 percent in the second stages. How many km will they cover in the third stage?
- Circumference 3160
In an isosceles triangle, the base length is 75% of the arm's length. Calculate the area of the triangle if the circumference is 22 cm. - Connecting 2990
We use 540 m of mesh, of which 20% are for connecting corners. How much mesh did we use to join the corners? - Consumption 2918
When driving in the city, the car has an average consumption of k liters of gasoline per 100 km, but when driving on the highway, it consumes an average of 20% liters less. Express the consumption of a car if it travels 25 km in the city and 75 km on the - Ascent 2725
If the road has an ascent of 8%, does that mean it will climb by 200 m? - Complete construction
Construct triangle ABC if hypotenuse c = 7 cm and angle ABC = 30 degrees. / Use Thales' theorem - circle /. Measure and write down the length of the legs.
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