Answer:
x ≤ 12
Step-by-step explanation:
The problem can be represented by the equation:
25 - x = y and y ≥ 13
So, we find that 25 - 12 = 13, which means that any number greater than 12 would result in a difference lower than 13. This sets 12 as the maximum.
<span>3^2*11 Here you go again :)</span>
To find the cost of one book you need to divide 40.20 by 3.
40.20/3= 13.4
Dont forget the dollar sign - $13.4
Cost of one book is $13.4
( 1 - x/100)^20 = 3843/55550
Taking logs
20 log (1 - x/100) = log (3843/55550)
log ( 1 - x/100) = log (3843/55550) / 20 = -0.0580007
1 - x/100 = 10^-0.0580007 = 0.875
x / 100 = 1 - 0.875 = 0.125
x = 12.5 Answer
