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Vadim26 [7]
4 years ago
11

Problem Michael just finished a great meal in a restaurant in Wisconsin. The sales tax in Wisconsin is 5%, and it is customary t

o leave a tip of 15% for the waiter. The tip amount is calculated on the price of the meal before the tax is applied. Sales tax is not calculated on tips.If Michael left $18 dollar sign, 18 on the table to cover his meal, tax, and tip, what was the price of his meal before tax and tip?
Mathematics
1 answer:
Deffense [45]4 years ago
4 0
First find the percent of the sales tax added with the tip amount, which is 20%
15% + 5% = 20%
and the percent amount to the original amount, so
20% + 100% = 120%
$18=120% of original amount (12/10 is the same thing as 120%), so
18/12*10=$15= price of meal before tax and tip!

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rodikova [14]

Answer:

Roasted Steak RS=14.47

Grilled Salmon GS= 25.21

Step-by-step explanation:

It's a 2 equation system as follows

E1-> 17RS+14GS=598.95

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We assume the system has only one solution and apply the following calculation to create a single equation

E3 -> 2x E2 -E1

That way the only incognit will be RS

(28x2 - 17) RS + (7x2 - 14) GS = 581,64x2- 598,95

39RS= 564,33

We solve for RS and then use E1 to solve for GS and E2 to check the answers

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Answer:

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4m – 3(m + 1) – 4 < 0

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