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scZoUnD [109]
3 years ago
10

You are ordering a meal and have $15 to spend on. The restaurant charges 6% sales tax and you plan to leave a 15% tip. The equat

ion c= x+0.06x+0.15x gives the total cost c of your meal, where x is the cost before tax and tip. What is the maximum amount you can spend before tax and tip?
Mathematics
2 answers:
Illusion [34]3 years ago
8 0
<h2>Answer:</h2>

The maximum amount you can spend before tax and tip is:

                    $ 12.397

<h2>Step-by-step explanation:</h2>

x represents the cost before tax and tip.

Also, we have a total of $ 15 to spend on.

The equation which represents the total cost of our meal is given by:

            c= x+0.06x+0.15x

This means that:

c\leq 15\\\\i.e.\\\\x+0.06x+0.15x\leq 15\\\\1.21x\leq 15\\\\x\leq \dfrac{15}{1.21}\\\\x\leq 12.397

The answer is: $ 12.397

Lynna [10]3 years ago
4 0
Just solve the equation, x + 0.15x + 0.06x = 15
1.21x = 15,
x = $12.39 (nearly)
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<em>Given</em> 4m-2m^4-6m^2-4m+9

<em>Combine the like terms: 4m and -4m</em>

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<em>We have 4m-4m=0</em>

<em>So, write the remaining terms</em>

-2m^4-6m^2+9+0

= -2m^4-6m^2+9

<em>This is in decreasing order of powers.</em>

<em>Hence the answer is the standard form is</em>

-2m^3-6m^2+9

<em>But in the given options, you can choose option 2 and option 3 are in standard form.</em>

<em>Because they are in decreasing order of powers.</em>

<em>In other two options, the constants term is first and the highest power term is at the last. So, they are not in standard form.</em>

<em>-2m^4-6m^2+4m+9</em>

<em>-2m^4-6m^2-4m+9</em>

<em>I hope this helps you.</em>

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Using proportions, the selling prices are given as follows:

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<h3>What is a proportion?</h3>

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To find the selling prices, we have to multiply the original prices by either 1.02(2% sales tax) or 1.04(4% sales tax), hence they are given as follows:

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