A password contains exactly 7 letters. How many passwords are possible if letters cannot be used more than once?
2 answers:
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Answer:
The price of each meal cost before tax is $ 6.367
Step-by-step explanation:
Given as :
The total price of three meals = $ 20.25
The sales tax included in the total price = 6 %
So, Let the cost of meal before sales tax = x
Or, x + 6 % of x = $ 20.25
or, x + 0.06 x = $ 20.25
Or, 1.06 x = $ 20.25
∴ x =
I.e x = $ 19.10
Or, price of three meals before tax = $ 19.10
so, The price of each meal = = $ 6.367
Hence The price of each meal cost before tax is $ 6.367 answer