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 = [tex]x[/tex]
Percentage of milkshakes with whipped cream added to them = 70%
Number of milk shakes with added whipped cream can be given as:
⇒ [tex]70\% \textrm{ of the total number of milkshakes}[/tex]
⇒ [tex]70\% x[/tex]
⇒ [tex]\frac{70}{100}x[/tex] [Representing percent in fraction form]
⇒ [tex]0.7x[/tex] [evaluating in decimals]
We know that the number of milkshakes with whipped cream added to them = 210.
So, we have:
[tex]0.7x=210[/tex]
Solving for [tex]x[/tex]
Dividing both sides by 0.7
[tex]\frac{0.7x}{0.7}=\frac{210}{0.7}[/tex]
∴ [tex]x=300[/tex]
Thus, total number of milkshakes sold on Monday = 300
Number of milkshakes without whipped cream = [tex]300-210[/tex]= 90