Question

Assume that the number of pepperoni pieces placed on the pizza is proportional to the square of radius of the pizza. What will be the approximate number of pepperoni pieces on an extra-large pizza with diameter 54 cm?

a) 27
b) 40
c) 54
d) Cannot be calculated​

Answer 1

Answer:

(a) 27

Step-by-step explanation:

Total diameter is 54 so the pepperoni given will be the half of the given amount so, half of 54. And the half of 54 is 27. Thus, your answer is 27.

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Answer 2

Answer:

Correct answer is a) 27²

Step-by-step explanation:

• Proportional: Proportional means directly proportional. If a quantity p is directly proportional to another quantity q, then we can say if q is increased then p will also increase and if q is decreased p will also decrease.
• The proportionality is expressed by the symbol ∝.
• The given condition in question is,

        Number of pepperoni ∝ radius of pizza²

• The diameter of pizza is 54 cm.

        So, the radius of pizza = $\frac{1}{2} \times diameter$ = $\frac{54}{2}$ cm = 27cm

         Number of pepperoni ∝ 27²

        So the approximate number of peperoni pieces will be 27².

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