Question 141957
Lydia takes seven minutes more to complete an illustration than Tom. The total time taken by both of them is six hours. Form an algebraic equation to express this and identify the variables, coefficients, and constants of the algebraic expression.
:
Convert 6 hr to minutes: 60 * 6 = 360 min
;
Let t = Tom's time to do it alone
Then
(t+7) = Lydia's time to do it alone
:
Let the completed job = 1
:
A shared work equation:
{{{360/t}}} + {{{360/((t+7))}}} = 1