Chapter 3: Problem 68
Write the verbal sentence as an equation. Five more than two thirds of a number is 11.
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Solve the equation. $$5 m-(4 m-1)=-12$$
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. Write and solve an equation to find the number of each type of coin.
Solve the equation \(\frac{1}{9} x+1=4\) by following each sequence of steps described in parts (a) and (b). Which method do you prefer? Explain. a. Multiply and then subtract. \(\quad\) b. Subtract and then multiply.
Use 114.520 yen per United States dollar as the rate of currency exchange. You are visiting Japan and have taken $325 to spend on your trip. If you exchange the entire amount, how many yen will you receive?
Use the following information. You open a snack stand at a fair. The income and expenses (in dollars) for selling each type of food are shown in the matrices. \(\begin{array}{ccccccc}\text { Day 1 } & \text { Income } & \text { Expenses } & \text { Day 2 } & \text { Income } & \text { Expenses } \\ \text { Hamburgers } & 72 & 14 & \text { Hamburgers } & 62 & 10 \\ \text { Hot dogs } & 85 & 18 & \text { Hot dogs } & 52 & 11 \\ \text { Tacos } & 46 & 19 & \text { Tacos } & 72 & 26\end{array}\) What were your total income and expenses for selling each type of food for the two days of the fair?
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