Name Alg1 November 15, 2005 HW 1) Two buses leave the station at the same time. One is traveling north at a speed of 87 mph. The other is traveling south at 74 mph. How long until they are 507.15 miles apart? 2) Two planes leave the airport at the same time. One is traveling south at a speed of 168 mph. The other is traveling south at 191 mph. How long until they are 64.4 miles apart? 3) Two trains leave the station at the same time. One travels west at a speed of 71 mph and the other travels west at 92 mph. How long until the trains are 39.9 miles apart? Name Alg1 November 15, 2005 HW 4) Two birds leave a tree and one flies west at 16 mph. The other bird flies east at a rate of 11 mph. How long until the birds are 132.3 miles apart? 5) John got 4 91’s and 3 82’s. What is his average? 6) Fred has a 93 average after 6 tests. His 1st 5 grades were 89, 78, 97, 90, and 96. What did he get on the 6th test?