A telephone call costs $1.25 for the first minute and $0.32 for each

Question

A telephone call costs $1.25 for the first minute and $0.32 for each additional minute. What is the cost, in dollars, of a telephone call that lasts for x minutes, where x is an integer?

(A) 0.32+ 1.25x
 (B) 1.25+ 0.32x
 (C) 0.32+ 1.25(x - 1)
 (D) 1.25+ 0.32(x + 1)
 (E) 1.25 + 0.32(x - 1)

cat2010 · Answer

For ,First minutes cost will be $1.25 ,
Remaining minutes = x-1 
So,cost for these remaining minutes will be 0.32(x - 1)

The cost, in dollars, of a telephone call that lasts for x minutes = 1.25 + 0.32(x - 1 )

Option E

MarkusFrogggggmel · Answer

I don‘t undertand it. Why isn't the answer B)?

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Vibhatu · Answer

It says for first minute cost is 1.25, remaining minutes that is (x-1), the cost is 0.32 per minute, therefore the ans is 1.25+ 0.32(x-1)

Vibhatu · Answer

First minute cost will be $1.25 ,
Remaining minutes = (x-1)
Therefore cost for these remaining minutes will be 0.32(x-1)

The cost, in dollars, of a telephone call that lasts for x minutes = 1.25 + 0.32(x-1)

Answer E

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A telephone call costs $1.25 for the first minute and $0.32 for each

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A telephone call costs $1.25 for the first minute and $0.32 for each

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