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Nonamiya [84]
3 years ago
11

Yul has lunch at a resterant if his bill was $14.50 and yul wants to leave a 20% tip what is the amount he should leave for the

tip
Mathematics
1 answer:
Triss [41]3 years ago
4 0

14.50 times 0.20 = 2.9

He would give a $2.90 as a tip of 20% from a bill of $14.50

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WILL mark brainliest!
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Answer:

  110.5348 minutes

Step-by-step explanation:

The difference from room temperature changes from 103 to 59 in 46 minutes, so that difference can be modeled by the exponential equation ...

  Δt = 103×(59/103)^(t/46)

We want to find t for the temperature difference Δt = 91 -64 = 27.

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  27/103 = (59/103)^(t/46) . . . . . divide by 103

Taking logs gives the linear equation ...

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Multiplying by the inverse of the coefficient of t, we get ...

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It will take about 110.5347 minutes for the turkey to cool to 91 °F internally.

_____

<em>Comment on 4 decimal places</em>

An answer correct to 4 decimal places (7 significant digits) is a pretty good indication that the problem was worked correctly. However, that level of precision in the timing makes little sense in this context. Most thermometers will take at least a few seconds to register the temperature to within a tenth of a degree or so. This problem is asking for an answer that is within 6 milliseconds and 30 micro-degrees. Neither of these is anywhere near realistic for a kitchen meat thermometer.

More realistic would be an answer to 4 <em>significant figures</em>, a tenth of a minute and a few hundredths of a degree.

(The rate of change at the time of interest is about -0.33 degrees per minute.)

6 0
3 years ago
Tommy and his wife went to the store and bought groceries there's some total was $143.50 if the sales tax was 8% what was the to
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* means multiplication

143.50*.08=11.48

143.50+11.48=$154.98

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The answer to this is C
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What is the answer to this problem?
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X = 6, y = 8, z = 3
\frac{3y +  x^{2} }{z}
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3 years ago
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