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Answer:
100(1.8) – 1.2x > 100
Step-by-step explanation:
Profit = Gain - loss
Gain:
$1.80 for each drink sold
So
G = 1.80d
In which d is the number of drinks sold.
One day, the shop sells 100 drinks.
This means that and G = 100(1.8).
Loss:
$1.20 every time somebody buys a sandwich
x sandwiches are bought. So
L = 1.2x
Which inequality can you use to find possible numbers of sandwiches that it could sell and still make a profit of more than $100?
P > 100
P = 100(1.8) - 1.2x
So
100(1.8) – 1.2x > 100