19/40 as a fraction and decimal it is 0.475
(4/7)w = 12/7
w = (12/7) / (4/7)
w = 12/7 * 7/4
w = 84/28 = 3....it would take 3 weeks
Answer:
.43
Step-by-step explanation:
10% of what is 9...
0.10x = 9
x = 9/0.10
x = 90.....he has 90 all together
<span>For example
let there be 100 students
so the number of girls=40
20% of girls=20%of40=20*40/100=8 wear glasses
Which means 8 out of 100 students wear glasses
So 8%students wear glasses</span>
