Ticket out the Door


1. Tell what the d, r, and t represent in the formula d = rt

 

2.Explain why it is sometimes helpful to use charts and diagrams.

 

3. Describe your favorite mode of transportation. Then write a problem using the formula d = rt and your favorite mode.

 

4. Chemistry Joshua is doing a chemistry experiment that calls for a 30% solution of copper sulfate. He has 40ml of 25% solution. How many milliliters of 60% solution should Joshua add to obtain the required 30% solution? (Hint - try a diagram)

 

5. Sales The Cookie Crumbles Company sells two kinds of cookies daily: peanut butter at $6.50 per dozen and chocolate chip at $9.00 per dozen. Yesterday, Cookie Crumbles sold 85 dozen more peanut butter than chocolate chip cookies. The total sales for both were $4055.50. How many dozen of each were sold?

 

6.Air Travel. An airplane flies 1000 miles due east in 2 hours and 1000 miles due south in 3 hours. What is the average speed of the airplane?

 

7. Boating The Yankee Clipper leaves the pier at 9:00AM at 8 knots (nautical miles per hour). A half hour later, The Riverboat Rover leaves the same pier in the same direction traveling at 10 knots. At what time will The Riverboat Rover overtake The Yankee Clipper?

 

 


Return to 4.7