Jeff decides to ride his bike in the summer, too. At the end of the summer, he has rode his bike for 1,890 minutes. If he rode the same amount every day for 9 weeks, how many minutes did he ride per day? He rode minutes per day.

30 minutes

Step-by-step explanation:

9 weeks = 1890 minutes

=> 1 week = 210 minutes

=> 7 days = 210 minutes

=> 1 day = 30 minutes.

Therefore, he rode 30 minutes per day in the summer.

Step-by-step explanation:

Riding total = 1890 min

Number of days:

Daily riding:

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

may i see the picture? it would a lot, xox