Amanufacturer of prefabricated homes has the company's employees work in teams. team 1 can erect the silvercrest model in 15 h. team 2 can erect the same model in 10 h. how long would it take for team 1 and team 2, working together, to erect the silvercrest model home?

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?