Darius sold 50 milkshakes while working at Cool Treats. 40% of the milkshakes were vanilla. The rest were chocolate. After Darius sold some more vanilla milkshakes, the percentage of chocolate milkshakes decreased to 5%. How many more vanilla milkshakes did Darius sell?
Darius sold 50 milkshakes while working at Cool Treats. 40% of the milkshakes were vanilla. The rest were chocolate. After Darius sold some more vanilla milkshakes, the percentage of chocolate milkshakes decreased to 5%. How many more vanilla milkshakes did Darius sell?
decreased to and decreased by have a different meaning
...the percentage of chocolate milkshakes decreased to 5% (from 60%)
So, Darius sold 95% vanilla milkshakes and 5% chocolate milkshakes.
5% / 30 = 95% / x x = 570
Darius sold 550 more vanilla milkshakes.