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The price of bananas can be determined by the equation P=0.25n, where P is the price and n is the number of bananas. What is the constant of proportionality (unit rate)?

User M Azeem N
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1 Answer

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Given:

The price of bananas can be determined by the equation P=0.25n, where P is the price and n is the number of bananas.

To find:

The constant of proportionality

Solution:

We have,


P=0.25n ...(i)

where P is the price and n is the number of bananas.

Price P is directly proportional to the number of bananas. So,


P\propto n


P=kn ...(ii)

Where, k is the constant of proportionality.

On comparing (i) and (ii), we get


k=0.25

Therefore, the constant of proportionality is 0.25.

User Piohen
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