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If you have two sand glasses One of them is for the 4 minute another one - is for 7 minutes If you have to measure 9 minutes with these two sand glasses in 9 minutes?
Wiki User
∙ 13y ago
At 0 minutes, turn both the hourglasses.
After 4 minutes:
The 4 minute hourglass: 0 minutes left.
The 7 minute hourglass: 3 minutes left.
Turn the 4 minute hourglass.
After 7 minutes:
The 4 minute hourglass: 1 minute left.
The 7 minute hourglass: 0 minutes left.
Turn the 7 minute hourglass.
After 8 minutes:
The 4 minute hourglass: 0 minutes left.
The 7 minute hourglass: 1 minute left.
Turn the 7 minute hourglass.
After 9 minutes:
The 4 minute hourglass: 0 minute left.
The 7 minute hourglass: 0 minutes left.
Now you know you are finished.
Wiki User
∙ 13y ago
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How do you measure 3 minutes with a two minute hourglass and 5 minute hourglass?
Invert both hour glasses at the same time. Start when the two-minute hour glass finishes. Stop when the five-minute hours glass finishes.
What is .78 minutes?
A measure of time, somewhat shorter than 1 minute. Or an angle.
How many minutes is a light minute?
A light-minute is a measure of distance, not time. A light-minute is the distance light travels in a vacuum in one minute. Approximately 11,160,000 miles (18,000,000 km)
How many meters equals one minute?
No number of meters equals one minute, unless possibly minutes of longitude are meant. Normally, minutes measure time and meter measures distance, which are incommensurable (incompatible) categories.
A dishwasher can wash 14 plates per minute Another diswasher can was 10 plates per minute How many minutes will it take them together to was 1560 plates?
1560/24 = 65 minutes
How do you measure 3 minutes with a two minute hourglass and 5 minute hourglass?
Invert both hour glasses at the same time. Start when the two-minute hour glass finishes. Stop when the five-minute hours glass finishes.
What is .78 minutes?
A measure of time, somewhat shorter than 1 minute. Or an angle.
What are light-minutes in science?
A light-minute is a measure of distance. It is the distance light travels in one minute's time. One light-minute is a distance of about 11,176,943.82 miles.
What is 45 light minutes transferred to regular minutes?
Light minutes is a measure of distance, not of time. It is not possible to transfer a measure of distance into one of time. Otherwise you'd be able to figure out how many minutes high your house is, and how many miles of sleep you had last night.
How do you pronounce minute?
"Minutes" (a measure of time equal to 60 standard seconds) is pronounced "MIN-itz".
What is the plural of minute?
The plural of minute is minutes.
How many minutes is a light minute?
A light-minute is a measure of distance, not time. A light-minute is the distance light travels in a vacuum in one minute. Approximately 11,160,000 miles (18,000,000 km)
If you have two hourglasses one four minute timer and one seven minute timer how can you measure nine minutes?
Start both timers, when the four minute timer is done, there will be 3 minutes of sand left in the top of the seven minute timer.Restart the four minute timer, while letting the remaining (3 minutes) of sand to drop from the 7 minute timer. (this is your 1st 3 minutes of your nine minute measurement)When the 7 minute timer is done the 4 minute timer will now have 3 minutes of sand in the bottom. Flip the 4 minute timer (when this runs it will be your second 3 minutes of time). At the same time flip the 7 minute timer.When the 3 minutes of sand run on the 4 minute timer, restart the 7 minute timer by this time 3 minutes worth of sand will have gone to the bottom of the timer, resetting it will give you the last 3 minutes of sand for you last 3 minutes of time measuring the 9 nine minutes.
How many minutes are there in 4 minute and 48 seconds?
4 whole minutes and 4/5 of another one.
How many meters equals one minute?
No number of meters equals one minute, unless possibly minutes of longitude are meant. Normally, minutes measure time and meter measures distance, which are incommensurable (incompatible) categories.
What does '60 M in a D' mean?
Sixty Minutes in a Degree. A "minute" is a unit of angular measure used in astronomy.
Why did hary measure his heart rate every minute for 5 minutes before drinking his cola?
what is the answer
