T - 3 = 4v
(T - 3) / 4 = v
Hello, sorry if this seems a bit odd, it’s a common method though. Hope you can understand this. Thanks
If you make yourself a monthly expense chart:
Months
<u> 1 2 3 4 5 6 7 8 9 10</u>
Opt 1 -80 -30 -30 -30 -30 -30 -30 -30 -30 -30
Opt 2 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40
By month 5 the total amount spent for Opt 1 is $200 and Opt 2 is $200
For part two add up the values for each all the way up to month 9.
Option 1: 80 + 30(8) = 80 + 240 = 320 spent
Option 2: 40(9) = 360 spent
So option 1 is cheaper by month 9
Answer is A
8-4/4-2 = 4/2 = 2
<h2>Answer:</h2>
18 liter = 14% Bleach
............ = 10% Bleach
......=
