Question

Adrienne operates the milkshake machine at Burgers and Shakes. on Monday she added whipped cream to 210 shakes.This was 70% of the total milkshakes sold. how many milkshakes were sold at Burgers and Shakes on Monday? How many shakes did not have whipped cream?​

Answer 1

Answer:

300 milkshakes; 90 milkshakes

Step-by-step explanation:

70% = 210; then

10% = 30. If 10% = 30 then 100% = 300

I got 90 for the second question because 100%-70% = 30%

30×3=90