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Chapter 3: Q. 71 (page 333)
250% of 65 is what number?
The number is 162.5.
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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鈥檚 speed is miles per hour slower than Elvira鈥檚 speed. Find both women鈥檚 walking speeds.
Find the percent increase. (Round to the nearest tenth of a percent.)
In, the IRS increased the deductible mileage cost to cents from cents.
Marco hasto save for his daughter鈥檚 college education. He wants to divide it between one account that pays interest per year and another account that pays interest per year. How much should he invest in each account if he wants the interest on the total investment to be ?
Cindy and Richard leave their dorm in Charleston at the same time. Cindy rides her bicycle north at a speed of miles per hour. Richard rides his bicycle south at a speed of miles per hour. How long will it take them to be miles apart?
Ethan and Leo start riding their bikes at the opposite ends of a mile bike path. After Ethan has ridden hours and Leo has ridden hours, they meet on the path. Ethan鈥檚 speed is six miles per hour faster than Leo鈥檚 speed. Find the speed of the two bikers.
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