Grade - math word problems - page 901 of 912
Number of problems found: 18228
- Earth parallel
Earth's radius is 6377 km long. Calculate the length parallel to latitude 75°.
- Track arc
Two straight tracks are at an angle 74°. They will join with a circular arc with a radius r=1127 m. How long will the arc be connecting these lines (L)? How far is the arc's center point from track crossings (x)?
- Tree trunk
Calculate the average tree trunk with a circumference of 192 cm.
- Tourist
Tourists walk at 4.1 km/h. Every 5 km has a 20-minute break. How many kilometers were walked when they started at 4:40 and finished at 10:30?
- Train
The train passes part of the line for 95 minutes at a speed of 75 km/h. What speed would you have to go to shorten the driving time of 20 minutes?
- Seedcake
Seedcake costs 44 cents. How many minimum seedcakes must we buy that we can pay in cash, only whole euros?
- Conserving water
Calculate how many euros are spent annually on unnecessary domestic hot water, which cools during the night in the pipeline. The residential house has 129 m of hot water pipelines 5/8" and the hot water has a price of 7 Eur/m³.
- Sphere slices
Calculate the volume and surface of a sphere if the radii of a parallel cut r1=32 cm, r2=47 cm, and its distance v=21 cm.
- Sphere cuts
At what distance from the center does the sphere intersect with the radius R = 46 plane if the cut area and area of the main sphere circle are in ratio 2/5?
- Heron backlaw
Calculate the unknown side in a triangle with sides 24 and 40 and area 299.6.
- Equilateral triangle
Calculate the side of an equilateral triangle if its area is 886 mm².
- Right triangle
Right triangle legs have lengths 630 mm and 411 dm. Calculate the area of this triangle.
- Triangle
Calculate the triangle's heights ABC if the triangle's sides are a=26, b=81, and c=73.
- Diamond
Find the side of the diamond if its area is S = 490 cm² and one diagonal u2 = 39 cm.
- Lead cube
Calculate the cube's edge made from lead, which weighs 19 kg. The density of lead is 11341 kg/m³.
- Circle
How big is the area of a circle if its circumference is 51.2 cm?
- Cone and cube
About what percentage has cone with base radius r larger volume than a same high cube with square base with edge length r?
- Pump
What power does a pump output to move 1060 hl of water to a height of 43 m for 8 hours?
- Fan
The fan has a speed of 155 RPM. Calculate for the time of one fan period.
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