Answer:
C) 22 R9
Step-by-step explanation:
Jogging is given as 20 hours.
Total hours is given as 50.
Jogging = 20/50 hours, which reduces to 2/5.
A full circle is 360 degrees.
Multiply 360 by 2/5:
360 x 2/5 = 720 / 5 = 144 degrees.
Answer:
1.91h
Step-by-step explanation:
0.06h+h+0.85h
1.91h
Answer:
D. 9:1
Step-by-step explanation:
The formula for the volume of a cylinder is πr² · h (pi · radius² · height) (use 3.14 for pi).
The two right circular cylinders have the same height. The larger cylinder has a radius that is three times the size of the smaller radius.
4 · 3 = 12
However, in the equation for volume, the radius is squared. Because of this, the larger cylinder is 9 times the size of the smaller cylinder because 3² = 9.
You can check your work by finding the volume of the two cylinders using the volume formula πr² · h:
3.14 · 4² · 5 = 251.2
3.14 · 12² · 5 = 2,260.8
The cylinder with a radius of 12 cm is 9 times the size of the cylinder with a radius of 4 cm.
2.260.8 ÷ 9 = 251.2
Here :
x+4=19-2x
x+2x=19-4
3x=15/3
x=5
