Rachel sent or received 10,290 text messages in the month of September.
If each text message over the first 150 messages cost 8 cents, what was her texting bill? Explain how you got your answer.
Assuming that she slept 7 hours each day, what was the average number of text messages that passed through her phone each hour during her awake hours? Explain how you got your answer.
10290 - 150 = 10,140
10,140 * 0.08 = $______
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10,290 / (17 * 30) = _______ messages per hour!
for the second one i got 20.1764705882 can you plz check it
To calculate Rachel's texting bill, we need to determine the number of messages that exceeded the first 150, and then multiply that by the cost per message.
1. Find the number of messages above the first 150:
Total messages - 150 = 10,290 - 150 = 10,140
2. Calculate the texting bill:
Number of messages above 150 * cost per message = 10,140 * $0.08 = $811.20
Therefore, Rachel's texting bill for the month of September would be $811.20.
To find the average number of text messages Rachel sent or received per hour during her awake hours, we need to consider the total awake hours in a month and divide the total number of messages by that.
1. Find the total number of awake hours in September:
Total days in September * (24 hours - 7 hours of sleep) = 30 * (24 - 7) = 30 * 17 = 510 hours
2. Calculate the average number of text messages per awake hour:
Total messages / Total awake hours = 10,290 / 510 = 20.18 (rounded to two decimal places)
Therefore, the average number of text messages that passed through Rachel's phone each hour during her awake hours in September would be approximately 20.18 messages per hour.