Question

Rachel bought 12 rolls of packing tape and paid a total of $33.60. Kevin also bought rolls of packing tape. The table shows the total amount he is paid for different numbers of packing tape. Number of Rolls of Packing Tape Total Amount Paid 2 $6.40 5 $16.00 8 $25.60 How do the unit rates compare? Select from the drop-down menus to correctly complete the statement. Rachel's unit rate is than Kevin's because is greater than .

Answer 1

Rachel's unit rate is : 2.80

Kevin's is: 3.20

( you simply divide the dollar amount by the rolls of tape-- 33.60÷ 12)

Therefore, Kevin's is greater than Rachel's.

Rachel paid $33.60 for 12 rolls.

Unit rate paid by Rachel =

= 2.8

From table,

Kevin paid $6.40 for 2 rolls.

Unit rate paid by Kevin =

= 3.20.

Check:

Kevin bought 5 rolls for $16

5 × 3.2 = 16

He also bought 8 rolls for $25.6.

8 × 3.2 = 25.6.

If we compare the unit rates paid by Rachel and Kevin,

Rachel's unit rate is less than Kevin's because 3.2 is greater than 2.8.