Everyday day you make $30 -plus- 2/9th of your sales. 1)To convert a fraction into a percentage decimal you divide the numerator by the denominator: 2 divided by 9= .22 = 22%
in turn, you earn $30 plus 22% of your sales.
to figure out what dollar amount OF SALES (only)go you need to earn $100. you have to subtract 22% out of $100 and also subtract the $30you automatically make because it only asks for the dollar amount of sales. therefore: -to get 22% out of a 100 you multiply: 100*.22= 22 100-22=78 78-30=48.
total dollar amount of sales needed to earn $100 is: $48.
We have the following expression: (x- (5/2)) ^ 2 = (13/4) Let's rewrite the given expression: x ^ 2 - 5x + 25/4 = (13/4) x ^ 2 - 5x + 25/4 - 13/4 = 0 x ^ 2 - 5x + 12/4 = 0 x ^ 2 - 5x + 3 = 0 Answer: the original equation given to Sam could have been: x ^ 2 - 5x + 3 = 0
