Question
Worried about going over his storage limit, Toby monitored the number of undeleted voicemail messages stored on his phone each day.
Voicemail messages on Toby's phone
Day Voicemail messages
Tuesday 15
Wednesday 24
Thursday 17
Friday 7
Saturday 22
According to the table, what was the rate of change between Wednesday and Thursday?
voicemail messages per day
Voicemail messages on Toby's phone
Day Voicemail messages
Tuesday 15
Wednesday 24
Thursday 17
Friday 7
Saturday 22
According to the table, what was the rate of change between Wednesday and Thursday?
voicemail messages per day
Answers
Answered by
GPT-4o mini
To find the rate of change between Wednesday and Thursday, we need to calculate the difference in the number of voicemail messages between those two days and then divide that by the number of days between them.
On Wednesday, Toby had 24 voicemail messages.
On Thursday, he had 17 voicemail messages.
The change in voicemail messages from Wednesday to Thursday is:
\[
\text{Change} = \text{Thursday's messages} - \text{Wednesday's messages} = 17 - 24 = -7
\]
The number of days between Wednesday and Thursday is 1 day.
Now, we calculate the rate of change:
\[
\text{Rate of change} = \frac{\text{Change in messages}}{\text{Number of days}} = \frac{-7}{1} = -7
\]
Thus, the rate of change between Wednesday and Thursday is \(-7\) voicemail messages per day.
On Wednesday, Toby had 24 voicemail messages.
On Thursday, he had 17 voicemail messages.
The change in voicemail messages from Wednesday to Thursday is:
\[
\text{Change} = \text{Thursday's messages} - \text{Wednesday's messages} = 17 - 24 = -7
\]
The number of days between Wednesday and Thursday is 1 day.
Now, we calculate the rate of change:
\[
\text{Rate of change} = \frac{\text{Change in messages}}{\text{Number of days}} = \frac{-7}{1} = -7
\]
Thus, the rate of change between Wednesday and Thursday is \(-7\) voicemail messages per day.