A phone call costs $0.58 for the first 3 minutes and $0.15 for each additional minute. If the total charge for the call was $4.78, how many minutes was the call?
4.78 = .58 + .15(m-3)
m = 31
1.64 minutes
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31
28
A phone call costs $0.58 for the first 3 minutes and $0.15
for each additional minute. If the total charge for the call
was $4.78, how many minutes was the call?
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A telephone company charges a $0.25 connection fee, then $0.10 per minute for long distance calls. which statement is true regarding this situation
To find out how many minutes the call lasted, we need to subtract the initial charge from the total charge and then divide the remaining amount by the additional charge per minute.
Let's break it down step by step:
1. First, calculate the initial charge for the first 3 minutes: $0.58.
2. Next, subtract the initial charge from the total charge: $4.78 - $0.58 = $4.20.
3. Then, find out how many additional minutes were charged: $4.20 ÷ $0.15 = 28.
Therefore, the call lasted for the initial 3 minutes plus the additional 28 minutes, giving a total of 31 minutes.