Step-by-step explanation:
a square plus b squad plus c
If 6 of the 13 books are new, then 7 of them are used. The ratio of new (6) to used (7) is
6:7 or 6/7
Ratio of all books (13) to used books (7) is
13:7 or 13/7
3 = 379.25
4 = 1587.50
5 = 198.88
6 = 1217.50
7 = 1788.20
8 = 1408
9 = 205
10 = 1516
11 = 2034
12 = 880
13 = 1994.57
14 = 1157.77
15 = 38812.50
remember to round the numbers, and also write random numbers everywhere so it looks like you did it.
Answer:
494
Step-by-step explanation:
You can use Symbolab to solve equations of all types with explanations
