Section 10.3 Solving Problems Involving Inequalities

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Section 10.3 Solving Problems Involving Inequalities

Example 1(see textbook) Molly set her car’s trip odometer at zero at the start of her trip home. When the odometer showed that she had driven 16 miles, a highway sign showed her that she was still more than 25 miles from her home. What is the minimum total distance, to the nearest mile, that she will have traveled when she arrives home?

Translations At least At most No less than No more than

Example 2 (text p. 470) Mike wants to rent a car for his vacation. The rental costs $125 a week plus $0.15 a mile. How far to the nearest mile can Mike travel if he wants to spend at most $200?

Example 3 (text p. 470) The width of a rectangular computer screen is 20 cm less than twice the length. The perimeter is at least 53 cm. Find the minimum dimensions, in centimeters, of the screen if each dimension is an integer.

Assignment See syllabus