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harkovskaia [24]
2 years ago
6

Mark’s meal costs $21.11. He wants to leave a tip of 20.00%. What is the total charge for Mark’s meal? How much was the tip?

Mathematics
2 answers:
sesenic [268]2 years ago
7 0

Answer:

Total charge = $25.33

Tip = $4.22

Step-by-step explanation:

10% of $21.11 = $2.111

20% = $4.222

Since money only goes to 2 decimals, we round

The tip is $4.22

Add onto the total

$21.11 + $4.22 = $25.33

storchak [24]2 years ago
3 0

Answer:

$4.23 for the tip;

$25.34 for the meal cost.

Step-by-step solution:

Please see attached image.

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Step-by-step explanation:

<u>Step 1:  Solve using the first point</u>

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28 = a(2)^3 + b(2)^2 + c(2) + d

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<em>(-1, -5)</em>

-5 = a(-1)^3 + b(-1)^2 + c(-1) + d

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<u>Step 3:  Solve using the third point</u>

<em>(4, 220)</em>

220 = a(4)^3 + b(4)^2 + c(4) + d

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<u>Step 4:  Solve using the fourth point</u>

<em>(-2, -20)</em>

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