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Ipatiy [6.2K]
3 years ago
8

Ally is making a scale diagram of her classroom. She uses a scale factor of 3 centimeters per foot to draw the diagram. The actu

al length of the classroom is 18 feet, and its width is 20 feet. What is the area of the scale drawing of the classroom?
Mathematics
1 answer:
otez555 [7]3 years ago
3 0
20ft(3cm/ft)*18ft(3cm/ft)=3240cm^2
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What proportion of the first 10,000 natural numbers contain a 3
Sergeeva-Olga [200]
In the first 10 -> 10 - 9 = 1 (contain a 3).
In the first 100 -> 100 - 9 * 9 = 19 (contain a 3).
In the first 10^n -> 10^n - 9^n  (contain a 3).




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<u>The answer is 3.439 numbers contain a 3 in the first 10.000</u>

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3 years ago
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