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Sample Problem
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A bobsled gets a good push. The push adds 8.1 yards to the
distance the sled travels during the run. The sled travels at a
speed of 6.4 yards per second after the push. The sled's average
speed is given by the total distance divided by the time. The
8.1 + 6.4t
expression
represents the average speed for the
t.
sled in yards per second. The variable t represents the number
of seconds after the push. It is 5 seconds after the bobsled was
pushed. What is the sled's average speed, in yards per second?