Question

Chrissie likes to tip a server in a restaurant a minimum of 20%. She and her friend have a lunch bill that is $18.34. Chrissie says the tip will be $3.30. Her friend says that is not a minimum of 20%. Who is correct? Explain.

Answer 1

Step-by-step explanation:

100%= $18.34

10% = $18.34/10

=1.834

20% = 1.834×42

= 3.66800

= $3.70

It is correct because $3.70 is more than $3.30

Hope it helps you

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Answer 2

$= \frac{18.34}{100} \times 20 \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ = \frac{18.34 \times 100}{100 \times 100} \times 20 \\ \\ = \frac{1834}{10000} \times 20 \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ = \frac{1834 \times 2}{1000} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ = \frac{3668}{1000} = 3.668 \%\: \: \: \: \: \: \: \: \\ approx \: percent \: is \: 3.7\% \\ chrissies \: friend \: is \: correct \:$