Group Activity 197 118. Melissa runs a landscaping business. She has equipment and fuel expenses of $313 per month. If she charges $45 for each lawn, how many lawns must she service to make a profit of at least $600 a month? Melissa must service more than 20 lawns. 119. Madison is planning a 5-night trip to Cancun, Mexico, with her friends. The airfare is $475, her share of the hotel room is $54 per night, and her budget for food and entertainment is $350. She has $700 in savings and has a job earning $10 per hour babysitting.What is the minimum number of hours of babysitting that Madison needs so that she will earn enough money to take the trip? Madison needs to babysit a minimum of 39.5 hr. 120. Luke and Landon are both tutors. Luke charges $50 for an initial assessment and $25 per hour for each hour he tutors. Landon charges $100 for an initial assessment and $20 per hour for tutoring. After how many hours of tutoring will Luke surpass Landon in earnings? After 10 hr of tutoring, Luke’s earnings will surpass Landon’s earnings. Group Activity Computing Body Mass Index (BMI) Materials: Calculator Estimated Time: 10 minutes Group Size: 2 Body mass index is a statistical measure of an individual’s weight in relation to the person’s height. It is computed by where W is a person’s weight in pounds. h is the person’s height in inches. BMI 703W h2 The National Institutes of Health categorizes body mass indices as follows: 1. Compute the body mass index for a person 54 tall weighing 160 lb. Is this person’s weight considered ideal? Body Mass Index (BMI) Weight Status 18.5 BMI 24.9 considered ideal 25.0 BMI 29.9 considered overweight BMI 30.0 considered obese 27.5, No, the person is considered overweight. 2. At the time that basketball legend Michael Jordan played for the Chicago Bulls, he was 210 lb and stood 66 tall.What was Michael Jordan’s body mass index? 24.3 3. For a fixed height, body mass index is a function of a person’s weight only. For example, for a person 72 in. tall (6 ft), solve the following inequality to determine the person’s ideal weight range. 18.5 703W 17222 24.9 136.4 lb W 183.6 lb 4. At the time that professional bodybuilder, Jay Cutler, won the Mr. Olympia contest he was 260 lb and stood 510 tall. a. What was Jay Cutler’s body mass index? 37.3 b. As a body builder, Jay Cutler has an extraordinarily small percentage of body fat. Yet, according to the chart, would he be considered overweight or obese? Why do you think that the formula is not an accurate measurement of Mr. Cutler’s weight status? Jay Cutler’s BMI was 37.3 which placed him in the “obese” category. However, BMI is meant to be used as a simple means of classifying physically inactive individuals with an average body composition. The BMI formula does not account for other factors affecting a person’s weight such as fitness level, muscle mass, bone structure, and gender. Writing Translating Expression Geometry Scientific Calculator Video
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