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Bill bought a new cellular phone. His monthly bill will be $34.99 each month which includes 100 minutes of use. Additional minutes will cost $0.23 per minute. Write an equation that represents the cost of the bill C in terms of m, which is the number of minutes used ABOVE the 100 that are included in the base price. a. C = 34.99(m - 100) + 0.23 c. C = 0.23m b. C = 0.23m + 34.99 d. C = 0.23(m - 100) + 34.99

User Yim
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2 Answers

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B) C=0.23m+34.99

because you get you base price definitely and extra minute price can be removed if you don't use more than 100
User Dominus
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4 votes

Answer:

d. C = 0.23(m - 100) + 34.99

Explanation:

Let C = X + Y, where

C = Cost of the bill in terms of m

X = First term of the equation

Y = Second term of the equation

X = add additional minutes to $ 0.23 minus the 100 minutes of use allocated.

X = 0.23 (m - 100)

Y = Base price monthly will be $ 34.99

Y = 34.99

C = X + Y

C = 0.23 (m - 100) + 34.99

Note: The only possible answer is 0.23 (m - 100) + 34.99, but we must assume that "m" is greater than or equal to 100, that is, Bill consumes at least his 100 minutes assigned by the base price.

Hope this helps!

User Meetri
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