If someone sells 6 bottles of lemonade for 9 dollars, how much money would they get if they sell 100 bottles

300

Step-by-step explanation:

6=9

2=6

1=3

100*3=300

Step-by-step explanation:

Get 6 to 100 bottles -

6 x 16.5

You can only get 99 bottles

So, 9 x 16.5 = 148.5 dollars

Then you can work out how much one bottle is

...

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.