An airplane travels at 280 miles per hour. how far in miles will the airplane travel in 20 minutes?
2 answers:
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Answer:
-5 and -4
Step-by-step explanation:
It is far easier just to solve the equation than to determine appropriate integer bounds on the solution.
In the attachment, we show a couple of initial trials at solutions. The nearness of y=5 to being correct suggests that the next higher integer may be helpful, too. It is.
We find -4 and -5 to bracket the solution.
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The actual solution is (3.4 -1.3)/-0.5 = -4.2.
