In Exercises 18-21, use the following information, elephant stood still and was left behind. Then this stray elephant sensed danger
MIXED
answer the question. Check your answer with a table or a graph.
BIOLOGY
A migrating elephant herd started moving at a rate of 6 miles per hour. One
and began running at a rate of 10 miles per hour to reach the herd. The stray
caught up in 5 minutes.
ELEPHANTS need
supply of fresh
me shade, and
food such as
and leaves. To find
ephants may make
grations of a few
miles.
18. How long (in hours) did the stray run to catch up? How far did it run?
19. Find the distance that the herd traveled while the stray ran to catch up. Then
write an expression for the total distance the herd traveled. Let x represent the
distance (in miles) that the herd traveled while the stray elephant stood still
20. Use the distances you found in Exercises 18 and 19. Write and solve an
equation to find how far the herd traveled while the stray stood still.
21. Make a table or a graph to check your answer.
Chapter 3 Solving Linear Fuation