The Daytona 500 started in 1959 with an average speed of 135 mph but before they raced on the big speedway they would race up and down on the beach. In 1954 Lee Petty raced on the beach for a total of 160 miles. As the 2-hour race developed Lee averaged 90 mph for the first part of the race but only 60 mph for the last part. How long did he race at 90 mph and how long at 60 mph?
Fill in the below with the information to set up the system of equations:
Time for first part(_________)+Time for last part (_________)= Time for whole race (________).
Distance for first part (_________)+Distance for last part(___________)= Disatnce for the whole race (___________).
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