**(1) Write down what EACH variable represents. You will find these easiest to work if you use two

variables. You may use words, tables, or pictures.

**2) Write the equations. I suggest you write it as an English sentence first.

**3) Solve the equation. Show the steps clearly and neatly.

**4) Write the answer in a complete sentence, including units.

For a more detailed description of these requirements, see Documents>>Worksheets>>Instructions for

Application Problems.

Failure to show these steps will result in the problem only receiving partial credit.

(5 points each)

5. A boat travels 120 miles

downstream in 4 hours but it

takes 5 hours to return. Find the

speed of the boat in still water

and the speed of the current.

6. Ricardo has two auto loans

totaling $25,000. One has annual

interest of 8% and the other,

18%. If the total interest the first

year is $2300, how much did he

borrow at each rate?

7. Stomping Grounds sold

math books for $225 and the

workbook for $85. If they sold

38 books and received $6450

total, how many of each did

they sell?