To determine which expressions represent the time Whitney spends listening to her podcast over a five-day period, we need to calculate the total time spent listening. Given that Whitney listens to her podcast for 79 minutes each day, over a five-day period, the total time would be:
\[ 5 \times 79 \text{ minutes} \]
Now, let's evaluate the given expressions:
- 79 + 79 + 79 + 79 + 79: This expression adds up to the total time over five days, which is correct.
- 7 ninths plus 7 ninths plus 7 ninths plus 7 ninths plus 7 ninths: This does not represent the correct time and doesn't make sense in this context, as it doesn't relate to the minutes or hours involved.
- 359: This value alone does not work, as it doesn’t indicate how it relates to the total listening time.
- 35 ninths: This also doesn't fit the context or calculations, as it doesn't represent time.
- 5 + 79: This doesn't correctly represent total time either, as it simply adds 5 to 79.
- 5×79: This expression correctly represents the multiplication to find the total time spent over five days (5 days × 79 minutes).
Thus, the correct answers among the provided options are:
- 79 + 79 + 79 + 79 + 79 (This accurately calculates the total time in minutes)
- 5×79 (This accurately represents the time in a multiplication form)
The correct expressions are:
- 79 + 79 + 79 + 79 + 79
- 5 × 79
Please let me know if there are more expressions you would like to evaluate!
1 answer