Question 214837
900/x-900/(x+4)=18.75
(900(x+4)-900x))/x(x+4)=18.75
(900x+3600-900x)/(x^2+4x)=18.75
3600=18.75(x^2+4x) divide everything by 18.75
192=x^2+4x
x^2+4x-192=0
x^2+4x-192=0
(X+16)(X-12)=0
X-12=0
X=12 DAYS PLANNED
12=4 ACTUAL DAYS SPENT PAINTING.
PR00F:
900/12-900/16=18.75
75-56.25=18.75
18.75=18.75