Convert the following: 1) 9 minutes = _ seconds 2) 240 seconds = minutes 3) 7 days = hours 4) 96 hours = days 5) 4 days = hours 6) 48 hours = _ days
The Correct Answer and Explanation is:
Conversions and Answers:
- 9 minutes = 9 × 60 = 540 seconds
- 240 seconds = 240 ÷ 60 = 4 minutes
- 7 days = 7 × 24 = 168 hours
- 96 hours = 96 ÷ 24 = 4 days
- 4 days = 4 × 24 = 96 hours
- 48 hours = 48 ÷ 24 = 2 days
Textbook-Style Explanation
When dealing with units of time, it’s important to understand the relationships between seconds, minutes, and hours. These conversions are based on standard time measurements:
- 1 minute = 60 seconds
- 1 hour = 60 minutes = 3,600 seconds
- 1 day = 24 hours
To convert minutes to seconds, multiply the number of minutes by 60 because there are 60 seconds in every minute.
For example:
9 minutes × 60 = 540 seconds
To convert seconds to minutes, divide the number of seconds by 60.
For instance:
240 seconds ÷ 60 = 4 minutes
Next, to convert days to hours, multiply the number of days by 24 since each day has 24 hours.
For example:
7 days × 24 = 168 hours
To reverse that and convert hours to days, divide the number of hours by 24.
So:
96 hours ÷ 24 = 4 days
This same method can be applied to any time conversion between these units. Consider:
4 days × 24 = 96 hours
and
48 hours ÷ 24 = 2 days
These calculations are especially helpful in time management, scheduling, science experiments, and travel planning. It’s important to remember whether to multiply or divide based on the direction of the conversion (larger to smaller units = multiply; smaller to larger = divide).
Practicing these simple but essential conversions strengthens understanding of time and reinforces arithmetic skills used in everyday life.
