Multiply fractions and whole numbers
3. Math class starts at 9:50 A.M. and ends at 10:45 A.M. How long is the class???
Please help me on this question I'm stuck on homework!
Nate gave the clerk 20$ for 2 cassettes his change was $2.04 what was the total cost of each cassette?
9:50 to 10:00 = 10 minutes
10:00 to 10:45 = 45 minutes
so, just add it up
for the cassettes, subtract to see how much total was spent. Since it was for 2 cassettes, divide by 2 to get each one's cost:
(20.00-2.04)/2 = ?
To find the length of the math class, you need to subtract the starting time from the ending time. Let's break it down step by step:
1. Convert the times to a common format: Start by converting both the starting and ending times to the 24-hour clock format, which uses a 24-hour cycle instead of a 12-hour cycle. In the 12-hour clock format, 9:50 A.M. is equivalent to 09:50, and 10:45 A.M. is equivalent to 10:45.
2. Separate the hours and minutes: Split the times into hours and minutes. The starting time is 09:50, which means 9 hours and 50 minutes. The ending time is 10:45, which means 10 hours and 45 minutes.
3. Subtract the hours: Subtract the starting hours from the ending hours. In this case, subtract 9 from 10, which equals 1 hour.
4. Subtract the minutes: Subtract the starting minutes from the ending minutes. In this case, subtract 50 from 45. However, since 50 is greater than 45, you'll need to borrow an hour from the hours you calculated in step 3. This means you'll subtract 50 minutes from 45 minutes (while considering the borrowed hour), which gives you -5 minutes.
5. Adjust the negative minutes: Since you ended up with negative minutes in step 4, you'll need to add 60 to the negative minutes to get a positive value. In this case, adding 60 to -5 minutes gives you 55 minutes.
6. Combine the hours and minutes: Now, you have your final answer. The math class lasts for 1 hour and 55 minutes.
So, the length of the math class is 1 hour and 55 minutes.