(2 points) Jill watched 72 minutes of a movie that is 149 minutes long. What is the estimated number of minutes left if both numbers are rounded to the tens place? What is the actual number of minutes left?

Answer 1

To find the estimated number of minutes left in the movie when both numbers are rounded to the nearest ten, we round 72 minutes (watched) to 70, and 149 minutes (total length) to 150.

Now, we can calculate the estimated remaining time: \[ \text{Estimated remaining time} = \text{Estimated total length} - \text{Estimated watched time} = 150 - 70 = 80 \text{ minutes} \]

Next, we calculate the actual number of minutes left in the movie by subtracting the number of minutes that Jill has already watched from the total length of the movie: \[ \text{Actual remaining time} = \text{Total length} - \text{Watched time} = 149 - 72 = 77 \text{ minutes} \]

So, the estimated number of minutes left is 80 minutes, and the actual number of minutes left is 77 minutes.

Answer 2

Sal has 500 cell phone minutes per month. He has used 429 so far this month. How many minutes does Sal have left for the month?(1 point) Responses 54 minutes 54 minutes 71 minutes 71 minutes 81 minutes 81 minutes 29 minutes

Answer 3

To find out how many minutes Sal has left for the month, we subtract the number of minutes he has already used from his total allotted minutes.

Sal's total minutes = 500
Minutes used = 429

Calculating the remaining minutes: \[ \text{Remaining minutes} = \text{Total minutes} - \text{Used minutes} = 500 - 429 = 71 \text{ minutes} \]

So, Sal has 71 minutes left for the month.