Janelle and some friends went out to dinner. The cost of the meal was 68.50. They left a 20% tip. What was the total cost of the dinner, including tip?

Lösung

Lösung

Amount after tip : 82.2

Schritte zur Lösung

Translate the problem into an equation:

x = 68.5 + 0.2 \cdot 68.5

x = 68.5 + 0.2 \cdot 68.5 : x = 82.2

Amount after tip : 82.2

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