Answer:The combined cost of 0.6 pounds of blueberries and 1.8 pounds of clementines is $6.87 and this can be determined by using the unitary method.
Given :
A pound of blueberries costs $3.98 and a pound of clementines costs $2.49.
The following steps can be used in order to determine the combined cost of 0.6 pounds of blueberries and 1.8 pounds of clementines:
Step 1 - The unitary method can be used in order to determine the combined cost of 0.6 pounds of blueberries and 1.8 pounds of clementines.
Step 2 - If one pound of blueberries costs $3.98 then 0.6 pounds of blueberries costs:
= $2.388
Step 3 - If one pound of clementines costs $2.49 then 1.8 pounds of clementines costs:
= $4.482
Step 4 - The combined cost of 0.6 pounds of blueberries and 1.8 pounds of clementines is:
= 2.388 + 4.482
= $6.87
Explanation: