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Chapter 2: Q. 91 (page 128)
The difference of twice a number and seven is 17. Find the number.
The number is 12.
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Suppose you have six quarters, nine dimes, and four pennies. Explain how you find the total value of all the coins.
Laurie has \(46,000 invested in stocks and bonds. The amount invested in stocks is \)8,000 less than three times the amount invested in bonds. How much does Laurie have invested in bonds?
Anthony drove from New York City to Baltimore, which is a distance of 192 miles. He left at 3:45 and had heavy traffic until 5:30. Traffic was light for the rest of the drive, and he arrived at 7:30. His speed in light traffic was four miles per hour more than twice his speed in heavy traffic. Find Anthony鈥檚 driving speed in heavy traffic and light traffic .
In 10 years, a bank account that paid 5.25% simple interest earned $18,375 interest. What was the principal of the account?
Solve the linear equation.
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