Answer:
[tex]Cost = 284 x[/tex]
Step-by-step explanation:
Given
[tex]Old = 6245\ units[/tex]
[tex]New = 6538\ units[/tex]
Required
The cost of units used
First, calculate the number of units used.
[tex]Units = New - Old[/tex]
[tex]Units = 6538 - 6254[/tex]
[tex]Units = 284[/tex]
Next, multiply the units used by the cost per units,
Since the cost per unit is not given, we assume that it is x.
So, the total cost is:
[tex]Cost = Units * Cost\ per\ units[/tex]
[tex]Cost = 284 * x[/tex]
[tex]Cost = 284 x[/tex]