Answer:
Explanation:
Part A:
x = # of days
R: 1 hr + 3/4 hr/day(x)
J: 4 hr + 1/2 hr/day(x)
1 + 3/4x = 4 + 1/2x
3/4x - 2/4x = 3
1/4x = 3
x = 12 days
After 12 days of practicing (not including the first Saturday), they each will have practiced 10 hours
Part B:
Saturday plus 12 more days →
Saturday 1-Sun 2- Mon 3-Tues 4-Wed 5-Thurs 6-Fri 7-Sat 8-Sun 9-Mon 10-Tues 11-Wed 12-Thursday
They both will have practiced 10 hours on the second Thursday after they started on Saturday