A recipe for 1 batch of cookies uses 5 cups of flour and 2 teaspoons of vanilla.

Complete the double number line diagram below to show the amount of flour and vanilla needed for 1,2,3,4, and 5 batches of cookies. MAKE SURE YOU FILL OUT THE DOUBLE NUMBER LINE COMPLETELY! Then use the double number line to answer these questions:



a) If you use 20 cups of flour, how many teaspoons of vanilla should you use?

b) If you use 6 teaspoons of vanilla, how many cups of flour should you use?