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Yuki888 [10]
2 years ago
14

The price of a cake of radius r сm and height h cm is given by the formula

Mathematics
1 answer:
Vladimir79 [104]2 years ago
3 0

Answer:

20 cm

Step-by-step explanation:

Given that :

P = 1/25 r²h

P = price = 240 ; h = height = 15cm

Inputting values into the equation :

240 = 1/25 * r² * 15

25 * 240 = 15r²

6000 = 15r²

6000 / 15 = r²

400 = r²

Square root of both sides

20 = r

Radius = 20cm

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