12+56 u
4678
Formation is explanation is 356
Answer:
3/1
Step-by-step explanation:
Find where the line crosses directly through a point and count the boxes up and down. Hope this makes sense.
Answer:
9/50 and 18%.
Step-by-step explanation:
18% is already a percentage.
To convert this into a fraction, put the number over 100:
18/100. Simplify:
=9/50
Note: The decimal form will be 0.18.
Answer:
Step-by-step explanation:
The circumference of the outside of a ring is 66 mm and it has an outer diameter of 21 mm. The difference between the outer diameter and the inner diameter of the ring is its thickness. The thickness is constant around the ring. This means that inner outer and circles of the ring are similar. Therefore
Ratio of the outer diameter of the ring to the outer circumference of the ring = ratio of the inner diameter of the ring to the inner circumference of the ring. Therefore
21/66 = inner diameter/50
66× inner diameter = 50 × 21
Inner diameter = 1050/66 = 15.91mm