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A water-skiing instructor recommends that a boat pulling a beginning skier has a speed less than 18 miles per hour. Identify and solve the inequality that represents the possible distances d (in miles) that a beginner can travel in 45 minutes of practice time. Write and solve an inequality

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it's the harder way of using cross multiplication
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The inequality that represents the possible distances that a beginner can travel in 45 minutes of practice time is d < 13.5 miles.

Since the beginning skier has a speed less than 18 miles per hour, the number of miles per minute will be:

= 18 miles / 60 minutes

= 0.3 miles per minute

Therefore, the inequality that represents the possible distances d (in miles) that a beginner can travel in 45 minutes of practice time will be:

= 0.3 miles × 45 minute

= 13.5 minutes.

Therefore, the inequality that represents the possible distances that a beginner can travel in 45 minutes of practice time is d < 13.5 miles.

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