Percentage of pages of a book read by Katie = 32%
Total number of pages of the book read by Katie = 80
Let us assume the number of pages that the book has = x
Then
(32/100) * x = 80
32x = 80 * 100
32x = 8000
x = 8000/32
= 250
So the book has a total of 250 pages in it.
Then
The number of pages that Katie still needs to read = 250 - 80
= 170
So Katie needs to read 170 more pages in the book.
Answer:
y = -2
Step-by-step explanation:
2y + 10 = -3y
subtract 2y from both sides
10 = -5y
divide by -5 for both sides
-2 = y
2. Circumference is around 43.96, area is around 153.94
3. Circumference is around 94.25 and the area is around 706.86
Answer:
let number of people at the fair be x.
As per the statement:
70% of people are under 16 years old
⇒![x \times 70 \% = x \times \frac{70}{100} = \frac{70x}{100} =\frac{7x}{10}](https://tex.z-dn.net/?f=x%20%5Ctimes%2070%20%5C%25%20%3D%20x%20%5Ctimes%20%5Cfrac%7B70%7D%7B100%7D%20%3D%20%5Cfrac%7B70x%7D%7B100%7D%20%3D%5Cfrac%7B7x%7D%7B10%7D)
Remaining number = ![x - \frac{7x}{10} = \frac{10x-7x}{10} = \frac{3x}{10}](https://tex.z-dn.net/?f=x%20-%20%5Cfrac%7B7x%7D%7B10%7D%20%3D%20%5Cfrac%7B10x-7x%7D%7B10%7D%20%3D%20%5Cfrac%7B3x%7D%7B10%7D)
Since, one third of the people remaining are teachers
⇒Number of teachers at fair = ![\frac{1}{3} \times \frac{3x}{10} = \frac{x}{10}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D%20%5Ctimes%20%5Cfrac%7B3x%7D%7B10%7D%20%3D%20%5Cfrac%7Bx%7D%7B10%7D)
Also, it is given that the number of teachers at the fair are 21.
hence, ![\frac{x}{10} = 21](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B10%7D%20%3D%2021)
Multiply both sides by 10 we get;
x = 210
Therefore, total number of people at fair are. 210 people
Sometimes. for example, the opposite of 5 is -5, which isn’t greater than the number itself. but, the opposite of -5 is 5, which is greater.