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bekas [8.4K]
3 years ago
6

abdul bought 3 cds that were each the same price. including sales tax, he paid a total of $47.40. of that total, $2.70 was tax.

what was the price of each cd before tax
Mathematics
1 answer:
satela [25.4K]3 years ago
3 0

Answer: the price of each CD before tax is $14.9

Step-by-step explanation:

Let x represent the price of each CD before tax.

Abdul bought 3 CDs that were each the same price. It means that the total cost of the 3 CDs before tax is $3x.

Including sales tax, he paid a total of $47.40. Of that total, $2.70 was tax. It means that

3x + 2.7 = 47.4

3x = 47.4 - 2.7

3x = 44.7

x = 44.7/3

x = 14.9

the price of each CD before tax is $14.9

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Is 4.5 and 0.25 proportional
jeyben [28]

Answer: no

Step-by-step explanation:

450% and 25% are different.

3 0
2 years ago
What is the answer to this math question 2 1/12-5 5/6
AleksandrR [38]

<em><u>The solution is:</u></em>

2\frac{1}{12} - 5\frac{5}{6} = \frac{-15}{4} \text{ or } -3.75

<em><u>Solution:</u></em>

We have to solve the given expression

<em><u>Given expression is:</u></em>

2\frac{1}{12} - 5\frac{5}{6}

<em><u>Let us first convert the mixed fraction to improper fraction</u></em>

Multiply the whole number part by the fraction's denominator.

Add that to the numerator.

Then write the result on top of the denominator.

Thus we get,

2\frac{1}{12} = \frac{2 \times 12 + 1}{12} = \frac{25}{12}

5\frac{5}{6} = \frac{ 5 \times 6 +5}{6} = \frac{35}{6}

<em><u>Thus the given expression becomes,</u></em>

2\frac{1}{12} - 5\frac{5}{6} = \frac{25}{12} - \frac{35}{6}

Make the denominators same for easier calculations

2\frac{1}{12} - 5\frac{5}{6} = \frac{25}{12} - \frac{35 \times 2}{6 \times 2}\\\\2\frac{1}{12} - 5\frac{5}{6} = \frac{25}{12} - \frac{70}{12}\\\\2\frac{1}{12} - 5\frac{5}{6} = \frac{25-70}{12}\\\\2\frac{1}{12} - 5\frac{5}{6} =\frac{-45}{12}

<em><u>Reducing to lowest terms, we get</u></em>

2\frac{1}{12} - 5\frac{5}{6} = \frac{-15}{4}

<em><u>In decimal form, we get</u></em>

\rightarrow \frac{-15}{4} = -3.75

<em><u>Thus the solution is:</u></em>

2\frac{1}{12} - 5\frac{5}{6} = \frac{-15}{4} \text{ or } -3.75

6 0
3 years ago
What is the area of a circle whose diameter is 64
navik [9.2K]

Answer:

<em>A ≈ 3215.36</em>

Step-by-step explanation:

A = πr²

Radius - D/2

Radius - 64/2 → 32

A = 3.14(32)²

A = <em>3215.36</em>

Hope this helps! :)

5 0
3 years ago
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A rectangular prism has a length of 12 feet, a width of 6 feet, and a height of 2 feet.
aliina [53]
The volume of the prism is 144 ft^3. If we use the letter V to represent volume, the formula for the volume of a rectangular prism is V=length*width*height. When you plug in the numbers, the equation is V=12*6*2. When you multiply these three numbers together, you get 144. Because you are finding the volume, your units are cubed, so your answer is 144 ft^3. I have attached an image of this problem written out (I’m sorry if the image is bad, I drew it on my phone). If you need any more help or any clarification, please let me know and I will be happy to help!

3 0
2 years ago
Need more help again
Fittoniya [83]

Answer:

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Combine like terms

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QSR = 10x - 2

QSR = 10(7) - 2

QSR = 68º

5 0
3 years ago
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