The answer for this would be option 3: ASTRONOMY. Brahmagupta is a famous Indian mathematician and astronomer during the 7th Century, and he wrote textbooks related to astronomy and mathematics when he was in <span> Ujjain, India. Hope this helps. </span>
Answer:
22n
Step-by-step explanation:
Answer:
13) x=n-11
15) x=3*10
Step-by-step explanation:
I used x as the variable. The questions are pretty straightforward. They are asking you to put the terms in the description on the right side of the equation. The questions = x. That was probably confusing, but it is correct. I hope this helped!
Answer:
CP = Rs 500
Step-by-step explanation:
Given that,
Selling price of a book, SP = Rs 550
Profit percent = 10%
We need to find the cost price of the book. The formula for profit percent is given by :

So, the cost price of the book is Rs 500.
Answer:
400
Step-by-step explanation: