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iragen [17]
2 years ago
8

If the food bill is $38.92, then what would the tip be if you want to leave a tip of 15%?

Mathematics
1 answer:
Sphinxa [80]2 years ago
8 0

Answer:

$5.84

Step-by-step explanation:

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Need help #1. The answer is shown, but I don’t know how to get to the answer. Please teach and show steps.
Rufina [12.5K]

Answer:

B

Step-by-step explanation:

We are given that <em>x</em> and <em>y</em> are functions of time <em>t</em> such that <em>x</em> and <em>y</em> is a constant. So, we can write the following equation:

x(t)+y(t)=k,\text{ where $k$ is some constant}

The rate of change of <em>x</em> and the rate of change of <em>y</em> with respect to time <em>t</em> is simply dx/dt and dy/dt, respectively. So, we will differentiate both sides with respect to <em>t: </em>

<em />\displaystyle \frac{d}{dt}\Big[x(t)+y(t)\Big]=\frac{d}{dt}[k]<em />

Remember that the derivative of a constant is always 0. Therefore:

\displaystyle \frac{dx}{dt}+\frac{dy}{dt}=0

And by subtracting dy/dt from both sides, we acquire:

\displaystyle \frac{dx}{dt}=-\frac{dy}{dt}

Hence, our answer is B.

3 0
3 years ago
Read 2 more answers
Write The Number 12.1 As A Fraction Is simplest Form
musickatia [10]
12.1=12+0.1=12+\dfrac{1}{10}=\boxed{12\frac{1}{10}}
8 0
4 years ago
Jasmine is planning on buying a pair of khaki pants.
spayn [35]

Answer:

$19.79

Step-by-step explanation:

<em>I legit just helped someone with this same question XD..</em>

10% discount is $2.

Subtract.

You get 17.99.

10% sales tax is $1.80.

Add.

You get $19.79.

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3 years ago
A bottle of ketchup holds 0.946 liters. How many milliliters does it hold?
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Answer:

946

Step-by-step explanation:

3 0
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the area of a triangle is 49.28 square centimetres. if the base of the triangle is 8.8 centimeters, what is the height
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Step-by-step explanation:

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