Answer:
List all of the solutions.
142 cds=11
Step-by-step explanation:
142 cds=11
Answer: The answer is 9 shelves
Step-by-step explanation:
The total number of cds in the shelves 142
If 11 shelves as 8 cds each, then the 11 shelves as 11*8 cds = 88 cds
The cds let now is 142 - 88 = 54
If the rest of the cds, i.e. the 54 cds are 6 cds each in a shelves,
Then the shelves containing them is 54/6 = 9