How many kg of grass seed is needed to be sowing a circular field with a diameter of 120 meters when the 1 m2 should be used 0.8 grams seeds?
Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):
Showing 0 comments:
Be the first to comment!
To solve this example are needed these knowledge from mathematics:
Next similar examples:
The agricultural cooperative harvested 525 ares of rape, of which received 5.6 tons of rape seeds. Calculate the yield per hectare of rape.
- Two circles
Two circles with a radius 4 cm and 3 cm have a center distance 0.5cm. How many common points have these circles?
Rope with a bucket is fixed on the shaft with the wheel. The shaft has a diameter 50 cm. How many meters will drop bucket when the wheels turn 15 times?
Students are accommodated in 22 rooms. Rooms were 4 and 6 bed. How many rooms in which type occupied 106 children there?
The lady cut off one half of cloth. She needed three-quarters of this piece to sew a skirt. What part of the original piece of cloth still remained?
The city park is a circular bed of flowers with a diameter of 8 meters, around it the whole length is 1 meter wide sidewalk . What is the sidewalk area?
- 22/7 circle
Calculate approximately area of a circle with radius 20 cm. When calculating π use 22/7.
Perimeter of regular hexagon is 113. Calculate its circumradius (radius of circumscribed circle).
- Circle - simple
The circumference of a circle is 930 mm. How long in mm is its diameter?
- Diameter to area
Find the area of a circle whose diameter is 26cm.
- Pipe cross section
The pipe has an outside diameter 1100 mm and the pipe wall is 100 mm thick. Calculate the cross section of this pipe.
The radius of the larger circle is 8cm, the radius of smaller is 5cm. Calculate the contents of the annulus.
- Clock hands
The second hand has a length of 1.5 cm. How long does the endpoint of this hand travel in one day?
- Sales off
Calculate what was the original price of the good, if the price after discount 25% and the subsequent rise of 20% is 400 USD.
- Bicycle wheel
After driving 157 m bicycle wheel rotates 100 times. What is the radius of the wheel in cm?
- Circle r,D
Calculate the diameter and radius of the circle if it has length 52.45 cm.