Answer:
The weight of the zinc in the metal bar was 50% of the weight of the metal bar .
Step-by-step explanation:
Weight of the metal bar ,M= 36 g
Weight of the zinc in the metal bar , m= 18 g
Percentage of zinc in the metal bar :
The weight of the zinc in the metal bar was 50% of the weight of the metal bar .
Here is the formula.
5000j/7h = 714.285714j per 1 hour
Answer:
I didn't understand your question
It would be 24 by 15 because you would divide 120 and 75 by 5 individually to show that it is 1/5th as much as the original
Surface area of the fig is 2350.9 sq m (approx).
Step-by-step explanation:
Given,
Diameter = 34 m
so, radius (r) = 17 m
Height of the cylinder (h) = 12 m
Slant height of the cone (l) = 20 m
To find the surface area of the fig
Surface area of the fig = surface area of cylinder + surface area of cone
Formula
Surface area of cylinder = 2πrh
Surface area of cone = πrl
So,
Surface area of cylinder = 2π×17×12 sq m = 408π sq m
Surface area of cone = π×17×20 = 340π sq m
Surface area of the fig = 408π+340π sq m = 748π sq m
= 2350.9 sq m (approx)
