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Chapter 3: Q. 75 (page 333)
28 is 25% of what number?
The number is 112.
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One number is eight more than another. If their sum is increased by 17, the result is 95. Find the numbers.
Harrison has $ in his coin collection, all in pennies and dimes. The number of dimes is three times the number of pennies. How many coins of each type does he have?
Find ⓐ the amount of mark-up and ⓑ the list price.
Jim’s music store bought a guitar at original cost $. Jim marked the price up %.
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’s speed is six miles per hour faster than Leo’s speed. Find the speed of the two bikers.
Susana invested a principal of $in her bank account with interest rate %. How much interest did she earn in years?
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