Chapter 3: Problem 73
Evaluate the expression. $$5+8-3$$
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Find the percent. Round to the nearest whole percent. Tax of \(\$ .68\) on an item priced at \(\$ 11.29\)
Evaluate the expression. $$5 \cdot(12-4)+7$$
Apply the distributive property. $$4(x+2)$$
Use the following information. A person has quarters, dimes, and nickels with a total value of 500 cents ( 5.00 dollar). The number of nickels is twice the number of quarters. The number of dimes is four less than the number of quarters. Explain why the expression \(5(2 q)\) represents the value of the nickels if \(q\) represents the number of quarters. How can you simplify the expression?
In Citizen of the Galaxy by Robert Heinlein, Thorby learns that he owns “an interest in a company . . . through a chain of six companies—18% of 31% of 43% of 19% of 44% of 27%, a share so microscopic that he lost track.” Let x represent the total worth of the company in which Thorby owns a share. Suppose Thorby's share of the company is worth 1000 credits. Write and solve an equation to find the total worth of the company.
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