Answer:
4 milkshakes with whipped cream
Step-by-step explanation:
Let
x ----> the number of milkshakes with whipped cream sold last week
we know that
The total number of milkshakes sold were 10
so
10 milkshakes represent the 100%
by using proportion
Find how many milkshakes represent 40%
[tex]\frac{10}{100\%} =\frac{x}{40\%} \\ \\x=40*10/100\\ \\x=4[/tex]
therefore
4 milkshakes with whipped cream