Question

8) Sara left Houston with a speed of 68 mph. Alysa also left at the same time in the opposite direction at a speed of 87 mph. Find how many hours Alyssa must travel before they are 246 miles apart. 9) Two students on bicycles leave their classroom building at 10:00 AM and travel in opposite directions.If the average speed of one of the students is 12 kilometers per hour and the average speed of the other student is 14 kilometers per hour, at what time will they be 65 kilometers apart? agree to leave at the same time, drive towards each other and meet somewhere along 10) Suppose two sisters live 240 miles apart. They the route. The first sister tends to drive carefully and obey the speed limit.Her average rate of speed is 70mph. The others too fast, and her average rate of speed s 80mph. How long will it take the two sisters to meet each other for theirvisit?

need help solving all three questions. I don't understand the solving steps/process.

Answer 1

87 mp 68 mph SSa 8) Houstan O0S dino ant sons to be246 mile at Relotuis Sheud 2 44 155 .537 houno