Criteria are the goals that a design must achieve. They are determined by what you want the cup to do. Criteria for the volume of the cup compartments have been decided for you. The volume is expressed in four different units: Volume cubic centimeters milliliters fluid ounces cups cold pack 150 150 5 0.6 drink compartment 600 600 20 2.5 total 750 750 25 3.1 Although the volume is set, the shape of the cup is up to you. There are no right or wrong answers. Do you want your cup to be tall and skinny or short and wide

Criteria for my Cup:

I want my cup to be short and wide.

Step-by-step explanation:

a) By the way, a cup can be measured in volume.  There are no tall and skinny cups.  They are not attributes of a cup.  However, a cup can be short (height).  It can also be wide, usually measured in diameter and radius.

b) Data:

Volume          cubic centimeters     milliliters    fluid ounces     cups

cold pack                   150                      150                 5               0.6

drink compartment  600                     600               20               2.5

total                           750                     750               25                3.1

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.