paint tray volume is approximately 220.5 cubic inches.   231 - 220.5 = 10.5   one gallon is more that the tray can handle.   therefore, the paint will overfill the tray by 10.53 cubic inches.

An idea from geometery.  Things equal to the same thing are equal to each other. Therefore y=y and Therefore 2x+2=(1/2)x+5 Now solve for x.

All the current responses are OK.  The important point is; what is your goal?   William (Bill) L

Another way to remove the denominator when they are all the same is to multiply each term in the equation by the common denominator, 13.  This has the same affect.   William (Bill) L

8/5 - 8/5 = (8-8)/5=0/5=0 During addition and subtraction the denominators must be the same and it will not change.  Anything multiplied by zero (0) equals zero.   William L.

substitute each range value for y and solve for x.  you will get three numbers {x1,x2,x3} and these numbers are the domain values.

1/R = 1/R1 + 1/R2 (Rule for 2 parallel resistors) Subtract 1/R2 from both sides of the equation. 1/R – 1/R2 = 1/R1 Combine fractions on the left using the common denominator method. (R2 - R)/(R x R2) Therefore (R2 - R)/(R x R2) = 1/R1 Reciprocate both sides of the...