Wallpaper Installation Math: Verify the 240×360 Quote Calculation

Danny receives a quote for the installation of wallpaper measuring 240x360 for 1140, as well as assembly for \( 333\frac{1}{3}X500 . The total quote is $21200.

Danny tells the employee that his calculation is incorrect.

Choose the correct answer.

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Step-by-step video solution

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00:23 Let's choose the correct answer together.
00:26 First, identify the similarity ratio. Think about the relationship between the two shapes.
00:45 Alright, this number is our similarity ratio.
00:50 To find the area ratio, we square the similarity ratio. So, multiply the ratio by itself.
01:05 And now we have the area ratio. Great job!
01:12 Next, multiply the price by the ratio we found to figure out the new price.
01:19 And that's our solution! Well done on solving the question.

Step-by-step written solution

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1

Understand the problem

Danny receives a quote for the installation of wallpaper measuring 240x360 for 1140, as well as assembly for \( 333\frac{1}{3}X500 . The total quote is $21200.

Danny tells the employee that his calculation is incorrect.

Choose the correct answer.

3

Final Answer

The employee made a mistake in his calculations, Danny should pay $2199

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