It takes 7 high school students, working at identical constant individual rates, 10 hours to paint a certain house. at what time will the house be fully painted if 7 students start painting at 9 am and one student, working at the same rate, is added per hour starting at 1 pm?

Based on the figures as marked, /\rqs = —

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%