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alukav5142 [94]
3 years ago
7

Several large bowls are containing various amounts of tangerines on a table. When 12 of the bowls each had 8 more tangerines add

ed to them, the mean (average) number of tangerines per bowl increased by 6. How many bowls of tangerines are on the table?
Mathematics
1 answer:
Genrish500 [490]3 years ago
3 0

Answer:

4

Step-by-step explanation:

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96 ft²

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The general formula for the surface area of a pyramid is:  

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Since the area of the base is 36 ft², then each side is √36, or 6 ft. The perimeter is the sum of all the sides, so 6 x 4 = 24 ft.

Given the overall height of the pyramid is 4 feet, you can use the Pythagorean Theorem (a² + b² = c²) to find the slant height (hypotenuse) of the pyramid.  Using 3 feet for 'a' and 4 feet for 'b':

3² + 4² = c² or 9 + 16 = 25

25 = c² or c = 5

SA =  \frac{1}{2}(24)(5) + 36

SA = 60 + 36 = 96 ft²

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