Question 170169
together, each person does some fraction of the whole job, based on their individual times


let x=Carmen's time, so x+5=Jay's time


{{{20/x + 20/(x+5) = 1}}} __ multiplying by x(x+5) __ 20x+100+20x=x^2+5x


subtracting 40x+100 __ 0=x^2-35x-100 __ use quadratic formula to find x





ANSWER BELOW





X=37.7