Answer:
200 more drinks
Step-by-step explanation:
Let x = total number of customers
80% of x bought a drink
30% of x bought a snack
30% of x = 120
0.30 * x = 120
0.30x = 120
x = 120/0.30
x = 400
80% of x bought drink
80% * 400
= 0.80 * 400
= 320
320 customers bought a drink
How many more drinks were sold
= 320 - 120
= 200
200 more drinks were sold than snacks
x= y^2 -6y
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