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Chapter 3: Q. 364 (page 406)
Rowena’s monthly gasoline
bill dropped from \(83.75 last
month to \)56.95 this month. Find
the percent decrease.
The pecentage decrease is 32%.
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Elvira and Aletheia live miles apart on the same street. They are in a study group that meets at a coffee shop between their houses. It took Elvira half an hour and Aletheia two-thirds of an hour to walk to the coffee shop. Aletheia’s speed is miles per hour slower than Elvira’s speed. Find both women’s walking speeds.
Susana invested a principal of $in her bank account with interest rate %. How much interest did she earn in years?
The mix Ricardo plans to use to make brownies says that each brownie will be calories, and calories are from fat. What percent of the total calories are from fat?
Find three consecutive even integers whose sum is −36.
Sean’s new car loan statement said he would pay $in interest from an interest rate of % over years. How much did he borrow to buy his new car?
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