The profit produced by combining sales of gold label and black label equals the total of their individual profits. From the table

you find the gold label's profit

and similarly from another table

find the black label's profit

. Adding these yields

. Thus, option 5 is the correct choice.
The result is 67.5 minutes or 1 hour and 8 minutes remaining!
<span>m=10x-x for x
begin by taking x away from 10x
m=9x
then divide each side by 9
m/9=x
therefore, x=m/9</span>
Let's start by calculating the cost of the first 10 boxes, which totals $75, and the next 10 boxes cost $55.
Together, these 20 boxes amount to $130 spent. With $18 remaining, you can purchase 4 more boxes since 18 divided by 4.5 equals 4.
Therefore, the maximum number of boxes you can buy with $148 is 24.
137 paquetes de vasos, aunque el último solo tiene 7 vasos, es necesario para asegurar que no queden sin empacar.