Which three go together? Why do they go together?

1. 5 miles in 15 minutes
2. 3 minutes per mile
3. 20 miles per hour
4. 3 kilometers per minute

1. Two binders cost \$14, and 5 binders cost \$35.

   1. Complete the table to show the cost for 4 binders and 10 binders at that rate. Next, find the cost for a single binder in each case, and record those values in the third column.

      number of binders	cost (dollars)	unit price (dollars per binder)
      2	14
      4
      5	35
      10

      

   2. What do you notice about the values in this table?
2. This table shows the cost of notebooks. Complete the table. Be prepared to explain your reasoning.

   number of notebooks	cost (dollars)	unit price (dollars per notebook)
   20		3
   50		3
   	21	3
   	84	3
   		3

1. Clare makes bracelets at a constant speed.
   Complete the table. Be prepared to explain your reasoning.

   time spent (hours)	number of bracelets	speed (bracelets per hour)
   2		6
   5		6
   	42	6
   	66	6
   	90	6
   		6

   

2. Noah and Lin each bought some bracelets that Clare made.

   1. Noah bought 5 bracelets for dollars. How much did he pay per bracelet? Record it in the table.

      	number of bracelets	cost (dollars)	unit price (dollars per bracelet)
      Noah	5
      Lin

   2. Lin bought twice as many bracelets as Noah bought and paid twice the amount Noah paid. Complete the table to show her purchase.

   3. Did Lin pay twice the unit price that Noah paid?

   Pause here for a class discussion before moving on.

3. Mai bought bracelets for dollars. Diego bought 3 times as many bracelets and paid 3 times as much as Mai did. Complete the table.

   	number of bracelets	cost (dollars)	unit price (dollars per bracelet)
   Mai
   Diego

It takes 4 pounds of apples to make 6 cups of applesauce.