Does someone use the same amount of soap each day when he or she showers Rex Boggs of
Chapter 7, Problem 20(choose chapter or problem)
Does someone use the same amount of soap each day when he or she showers? Rex Boggs of Glenmore State High School in Queensland, Australia, decided to find out. He collected data for three weeks. a. Make a scatter plot and find a linear equation that fits the data. Use any method that you prefer. b. Write your equation in intercept form. c. Using your equation, after how many days would Rexs soap weigh 34 grams? d. How would your equation in 19b change if Rex starts with a family-size soap bar that weighs 200 grams? Write an equation for a family-size soap bar. (Assume the soap is used at the same rate.) e. If Rex starts with a family-size soap bar, how much will it weigh after 20 days have elapsed?
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