Tim has read 30 % of a book. He has 56 more pages to finish. How many pages are there in the book?
2 answers:
Answer:
Step-by-step explanation:
<h2>Given that :</h2>- Tim has read 30 % of a book.
- He has 56 more pages to finish.
- How many pages are there in the book ?
- total pages of book is 100•/•
⟼ total book = 100•/•
⟼ Tim has read 30 % of a book.
⟼ 100 - 30 •/• = 70 •/•
⟼ 70 •/• = 56 pages
⟼ 1 •/• = 56 / 70
⟼ 100 •/• = 56 / 70 × 100
⟼ 100 •/• = 56 / 7 × 10
⟼ 100 •/• = 8 × 10
⟼ 100 •/• = 80 pages
∴ tim has 80 total pages in book.
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Answer:
Step-by-step explanation:
We need to use the formula to calculate the probability of (A or B) where
A=Probability a student likes pepperoni
B=Probability a student likes olive
A and B =Probability a student likes both toppings in a pizza
A or B =Probability a student likes pepperoni or olive (and maybe both), a non-exclusive or
The formula is
Since 6 students like pepperoni out of 9:
Since 4 students like olive out of 9:
Since 3 students like both toppings out of 9
Then we have