Some harry can rake the leaves in the yard 8 hours faster than his little brother jimmy can. if they work together, they can complete the job in 3 hours. using complete sentences, explain each step in figuring out how to determine the time it would take jimmy to complete the job on his own.

use rates, the rate a person is working is the reciprocal of the time working together, they work at a rate of 1/3 job per hour when two people work together their rates add together ---> 1/h + 1/j = 1/3 ---> h = j - 8 (harry takes 8 hrs less than jimmy) substitute and solve for j

because they could drop even lower..