In 2011. Dagan had a collection of 30 music CDs. Since then they have given away 2 CDs and purchased new CDs. Since 2011. what has been the percent increase in the number of CDs in Dagan's collection?
Well, it seems like Dagan's CD collection has been quite the musical rollercoaster! Let's crunch some numbers here. If Dagan started with 30 CDs and gave away 2, that means they now have 28 CDs. As for the number of CDs they purchased, you haven't mentioned that, so I'll just assume they didn't empty their pockets at the CD store, avoiding a potential catastrophe for their bank account.
Now, to calculate the percent increase in Dagan's CD collection since 2011, we can use the formula: ((New Value - Old Value) / Old Value) x 100. In this case, the old value is 30 and the new value is 28. Plugging those numbers in, we get:
((28 - 30) / 30) x 100 = (-2 / 30) x 100 = -6.67%
So, it seems like Dagan's CD collection has experienced a not-so-impressive decrease of 6.67%. Perhaps it's time for Dagan to explore the wonders of playlist-making instead!
To find the percent increase in the number of CDs in Dagan's collection, we need to compare the change in the number of CDs to the initial number of CDs and express it as a percentage.
Step 1: Calculate the change in the number of CDs.
Since 2011, Dagan has given away 2 CDs and purchased new ones. Let's assume Dagan has added 'x' new CDs to their collection.
Therefore, the change in the number of CDs is: x - 2.
Step 2: Calculate the percent increase.
To calculate the percent increase, divide the change in the number of CDs by the initial number of CDs and multiply by 100.
Percent Increase = ((x - 2) / 30) * 100.
So, to find the percent increase in the number of CDs in Dagan's collection, we need to know the number of new CDs purchased since 2011.
To find the percent increase in the number of CDs in Dagan's collection since 2011, we need to calculate the difference between the initial number of CDs and the current number, and then find the percentage increase.
Given information:
Initial number of CDs (in 2011): 30 CDs
CDs given away since 2011: 2 CDs
First, let's calculate the current number of CDs in Dagan's collection. Since Dagan gave away 2 CDs, the current number of CDs is 30 - 2 = 28 CDs.
Now, let's find the difference between the initial and current number of CDs: 28 CDs - 30 CDs = -2 CDs.
Since the difference is negative, it means there has been a decrease in the number of CDs.
To find the percent decrease, we need to take the absolute value of the difference and divide it by the initial number of CDs, and then multiply by 100 to get the percentage:
Percent decrease = (absolute value of the difference / initial number of CDs) * 100
= (|-2 CDs| / 30 CDs) * 100
= (2 CDs / 30 CDs) * 100
= (1/15) * 100
= 6.67%
Therefore, the percent decrease in the number of CDs in Dagan's collection since 2011 is approximately 6.67%.
missing data.
let the number of new CD's be x
so new collection = 30 - 2 + x = x + 28
percentage increase = (x+28)/30 * 100 %
Once you determined what the rest of the question is, continue ....