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ICE Princess25 [194]
3 years ago
7

James and Sarah went out to lunch. The price of lunch for both of them was $20. They tipped their server 15% of that amount.

Mathematics
2 answers:
lesantik [10]3 years ago
7 0

Answer:

Each person paid $7.67

Step-by-step explanation:

Total price of lunch = $20

They tipped their server 15% of that amount.

Amount of tip =15\% \times 20 = \frac{15}{100} \times 20 = 3

Total price of lunch including tip = 3+20=$23

Now James and Sarah shared the price of lunch and the tip equally

Each person paid amount =\frac{23}{3}=7.67

Hence each person paid $7.67

Wittaler [7]3 years ago
4 0

\bf \begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{15\% of 20}}{\left( \cfrac{15}{100} \right)20}\implies 3~\hfill \begin{array}{llll} \stackrel{\textit{price + tip}}{20+3\implies 23}\\\\ \stackrel{\textit{each one paid half of 23}}{11.5} \end{array}

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