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2 years ago

6

a meal cost $15. we gave the waiter $18 and told him that the difference was his tip. what percent of the cost of the meal was t

he tip we gave?

2 answers:

Stella [2.4K]2 years ago

6 0

18 - 15 = 3
3/15 = n/100
15n = 300
n = 20

olga2289 [7]2 years ago

6 0

83 percent.
You gave them 18 dollars. As a percentage, your answer is 83%

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Step-by-step explanation:

we know that

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A is the Final Investment Value

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n is the number of times interest is compounded per year

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Part B) Semiannual

in this problem we have

$t=5\ years\\ P=\$47,400\\ r=0.07\\n=2$

substitute in the formula above

$A=\$47,400(1+\frac{0.07}{2})^{2*5}$

$A=\$47,400(1.035)^{10}$

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Part C) Monthly

in this problem we have

$t=5\ years\\ P=\$47,400\\ r=0.07\\n=12$

substitute in the formula above

$A=\$47,400(1+\frac{0.07}{12})^{12*5}$

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Part D) Daily

in this problem we have

$t=5\ years\\ P=\$47,400\\ r=0.07\\n=365$

substitute in the formula above

$A=\$47,400(1+\frac{0.07}{365})^{365*5}$

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