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Chapter 3: Q. 77 (page 333)
81 is 75% of what number?
The number is 108.
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In years, Gloria鈥檚 bank account earned $ interest at %. How much had she deposited in the account?
Susana invested a principal of $in her bank account with interest rate %. How much interest did she earn in years?
Kimngoc had lunch at her favorite restaurant. She wants to leaveof the total bill as her tip. If her bill was, how much will she leave for the tip?
Deloise has $ in pennies and nickels in a jar on her desk. The number of pennies is three times the number of nickels. How many coins of each type does she have?
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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