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cluponka [151]
3 years ago
10

Estimate a 20% tip for $31.15 $4.65 $3.10 $6.20 $12.40

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
6 0

Answer: 6.20$

Step-by-step explanation:

Dvinal [7]3 years ago
6 0
$6.23

I am going to explain it two different ways.

31.15 x 0.20 = 6.23
31.15 +6.23 tip = 37.38 for you total bill including tip

An easier way my mom taught me for tipping in restaurants is you look at the bill $31.15 in this case move the decimal to the left one place and that give you 10%..double it and you have your 20% tip.
3.11 + 3.11 = 6.22
This way you don’t have to take a calculator out in front of anyone to calculate the tip.
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Step-by-step explanation:

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Answer:

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Using synthetic division, divide P(x) by (x+1) as shown below.

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--------------------------------------

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