a boat traveled 160 miles downstream and back. the trip downstream took 4 hours. the trip back took 8 hours. find[..]

Solving systems of linear equations in two variables: Walt made an extra $9000 last year from a part-time job. He[..]

A man goes into a grocery store and buys a grapefruit and a toy ball. A 7% tax is applied to the price of non-food[..]

at 6:00 A.M., there were 800,000 gallons of water remaining in a reservoir.After 8 hours of irrigation, there were[..]

A new preschool predicts that 60% of the 150 spaces open for registration will be filled during the first week of[..]

In a family thre are two cars. The sum of the average miles per gallon obtained by the two cars in a particular[..]

John is 27 years old. The sum of the ages of John and Pearl is 75. How old is Pearl?

The cost of living last year went up 8%.Fortunately, Alice Swanson got a 8% raise in her salary from last year. This[..]

a. Suppose a market research company finds that at a price of p = $20, they would sell x = 42 tiles each month. If[..]

Richard is planning to enlarge a retanngular space with a lenght os 9FT and a width of 7ft so that the new area is[..]