Expression of a variable from the formula - math word problems - page 128 of 139
Number of problems found: 2772
- Subsequent 3427
Find how many strings there are in the first row if there are 44 strings in the eighth row, and in each subsequent row, there are five more strings than in the previous row.
- Rectangle from string
String 12m. Make a rectangle when one side is two times longer than its width.
- Wall height
Calculate the surface and volume of a regular quadrangular pyramid if side a = 6 cm and wall height v = 0.8dm.
- Axial cut
The cone surface is 388.84 cm2, and the axial cut is an equilateral triangle. Find the cone volume.
- Cylindrical 3394
The cylindrical container with a diameter of 1.8 m contains 2000 l of water. What height does the water reach?
- Cube diagonals
If you know the length of the body diagonal u = 216 cm, determine the cube's volume and surface area.
- Wednesday 3391
On Monday, three pupils were missing from the class, 12% of the total number of pupils. How many pupils were missing on Wednesday if 84% of all pupils were in school?
- Pyramid
The pyramid has a base rectangle with a = 6cm and b = 8cm. The side edges are the same, and their length is 12.5 cm. Calculate the surface of the pyramid.
- Cuboid and ratio
A cuboid has dimensions in a ratio of 1:2:6, and the surface area of the cuboid is 1000 dm². Calculate the volume of the cuboid.
- Cylindrical tank
The cylindrical tank holds 600hl water and is deep 2.5 m. Calculate the diameter of the cylinder.
- Electrons 3363
How many electrons must be together to put a charge of -1C together?
- Machines 3358
The first machine was made for hours to watch pieces. The more powerful machine produced 32 more watches in the same period. How many watches would both machines produce together in 3 hours?
- Expenditures 3355
Expenditures on joint trips for pupils were: Travel expenses in euros. Meals in euros. Three nights in euros. Small expenses in euros. Calculate the amount of c that each student paid.
- Crowns 3352
A box with six pieces of soap costs x crowns. How much will five pieces of soap cost?
- Expression 3350
Calculate the value of the expression x / y if you know that (-4x + 3y) / y = 5
- Above Earth
To what height must a boy be raised above the earth to see one-fifth of its surface?
- Specify 3347
We have a number. If we divide its fourth power by its square, we get the number 0.25. Find this number.
- Function 3345
Perform the inverse function from f: y = 4x + 5.
- Height 3344
The bottom is 25m wide and 10m long, and there is 37640 hl of water. What height does the water reach?
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