Answer:
n=7
Step-by-step explanation:
difference means subtraction so:
8n - 21= 35
8n=35+21
8n= 56
n= 56÷8
n=7
Answer:
Step-by-step ---------------explanation:
total weight of both bags = 3 oz + 20.6m oz
Don's bag = 2 oz
Jamie's bag = 1 oz
Don's marbles = 9.4 oz * m
Jamie's marlbes = 11.2 oz * m
Total weight of Don's bag = 2 oz + 9.4m oz
Total weight of Jamie's bag = 1 oz + 11.2m oz
2 oz + 9.4m oz + 1 oz + 11.2m oz = 3 oz + 20.6m oz
Answer: The original number of CDs is between 1000 and 1500.
Step-by-step explanation:
Since we have given that
Number of copies of a popular CD left to be sold in the store = 15
According to question, this is between 15 and 1.5% of the original number of copies of the CD in the store.
Let the original number of copies of the CD in the store be 'x'.
Now, 15 is equal to 1% of the original number of copies of the CD, it becomes

Or if 15 is equal to 1.5% of the original number of copies of the CD, it becomes

Hence, the original number of CDs is between 1000 and 1500.