150 students. there are two hands. therefore, 50% chance of being left handed, 50% chance of being right handed. 50%= half. half of 300=150. 150 students should be expected to be left-handed.
12 problems in each assignment and he assigns the assignments 3 times a week. He has 25 students. Therefor...
12 x 3 = 36
36 x 25 = 900
Answer: 900
If the number is 3.8333333.... then
X=3.83333....
10X = 38.3333.....
10X - X
38.3333....
- 3.8333....
= 34.5
so 9X = 34.5
X = 34.5/9
Multiple both top and bottom by 2 to get rid of decimal.
69/18
Normalize it to get rid of improper fraction.
3 15/18
Simplify
3 5/6
If the number is 3.838383838383.... then
X = 3.83838383...
100X = 383.83838383...
100X - X = 99X
383.83838383...
3.83838383...
380
99X = 380
X = 380/99
X = 3 83/99
Since 12 inches is 1 foot, 8 inches must be 96 inches (8 x 12)
the ratio is 3:96.
Oh wait, it can be divided once more by 3.
Therefore, the (final) answer for the scale of the drawing is 1:32
162 is eighty-one percent of 200
