A recipe for 3/4 of a cup of sugar. The recipe makes 2 servings. The Baker needs to make 5 1/3 servings. The baker has 1 cup of sugar.
How many more cups of sugar does the baker need? Round to the nearest hundredth, if neccessary

step-by-step explanation:

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.

my dear correct answer is option number 3