This number is standard form ninety billion.
Add the table please for assistance in this problem
Train A arrives at central station on the hour and every 12 minutes. Train B arrives on the hour and every 15 minutes. When do both trains arrive at thesame time?
I believe that both trains would arrive at the same time on the hour (D).
Hope this helped :)
K + 77 = 2k - (16 - 89)
k + 77 = 2k - (-73)
k + 77 = 2k + (73)
k - 2k = 73 - 77
change the signs
k = 4
