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Nostrana [21]
3 years ago
7

Bananas are on sale for $0.40 a pound, and you have a coupon for $0.25 off your total purchase. Write a function rule for the co

st of n pounds. How much would 30 pounds of bananas cost?
A) C(n)= 0.25n-0.40;$7.10 B) C(n)= 0.4n-0.40;$11.60 C) C(n)= 0.4n-0.25;$11.75 D) C(n)= 0.4n;$12.00
Mathematics
2 answers:
pashok25 [27]3 years ago
8 0
The answer is  450 <span>Bananas </span> don't now  is that helps but
Finger [1]3 years ago
4 0

Answer

Write a function rule for the cost of n pounds and Find how much would 30 pounds of bananas cost .

To prove

First Case

First find the function rule for the cost of n pounds.

As given

Bananas are on sale for $0.40 a pound, and you have a coupon for $0.25 off your total purchase.

Here number of bananas = n pounds

Than the function becomes

C(n) =  0.4n - 0.25

Where C(n) is represented the total cost of the n pounds bananas.

Second Case

Find the cost for the 30 bananas .

Put n = 30 in the above equation.

C(30) =  0.4 × 30 - 0.25

          = $11.75

Therefore the option (C) is correct.


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