Answer: There is 20 ounces of liquid in the bowl after adding 8 containers of sparkling water.
Step-by-step explanation:
Since we have given that
Number of ounces of cranberry juice into a punch bowl = 12 ounces
According to question, he uses a container to add sparkling water to the bowl one ounce at a time.
Let the amount of sparkling water added to the bowl be 'x'
Let the total number of ounces of liquid Marcus will have be 'y'.
So, our equation becomes,
[tex]y=12+x[/tex]
Here, we have asked after adding 8 containers of sparkling water .
So, now, our equation becomes,
[tex]y=12+x\\\\y=12+8\\\\y=20\ ounces[/tex]
Hence, there is 20 ounces of liquid in the bowl after adding 8 containers of sparkling water.