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Alla [95]
3 years ago
11

A family goes to a restaurant for a meal. When they receive the bill, they calculate a 20% tip on the price of their meal before

the sales tax is added. The tip is $5.50. What is the total cost of their meal including the tip without tax? PLEASE HELP!!!!!
Mathematics
1 answer:
dybincka [34]3 years ago
8 0

If the tip was $5.50 and it's 20% of the bill before sales tax, 5.5/x = 2/10 becuase 5.5 divided by the total must be the same as 20%. Cross multiply to find the answer; 5.5 * 10 = 2x, then 55 = 2x, then x = 27.5

You can check by multiplying 27.5 * 0.2 (which is 20%) and that is 5.5 This means that the total cost before tax is $27.50

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