Brianna paid $13.77 for a new CD. The price includes a 6% sales tax. How much was the CD before the tax?
1 answer:
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Answer:
Total number of milkshakes sold on Monday = 300
Number of milkshakes without whipped cream = 90
Step-by-step explanation:
Given:
Adrienne adds whipped cream to 210 milk shakes which is 70% of the total milk shakes sold.
To find the total milkshakes sold.
Solution:
Let the total number of milkshakes sold on Monday be =
Percentage of milkshakes with whipped cream added to them = 70%
Number of milk shakes with added whipped cream can be given as:
⇒
⇒
⇒ [Representing percent in fraction form]
⇒ [evaluating in decimals]
We know that the number of milkshakes with whipped cream added to them = 210.
So, we have:
Solving for
Dividing both sides by 0.7
∴
Thus, total number of milkshakes sold on Monday = 300
Number of milkshakes without whipped cream = = 90