Which context describes a difference of rational numbers?(1 point)
determining the coldest temperature in a month
finding the average of daily high temperatures
recording the temperature hourly
comparing the daily high temperature and low temperature
Comparing the daily high temperature and low temperature
Which scenario about books represents finding the difference?
finding the location of a book in a store
finding the number of books remaining after a sale on books
finding the type of books in a store
finding the total number of books in a store when new books arrive
Finding the number of books remaining after a sale on books
The temperature on Monday is −4°C. On Tuesday, it is 13° colder. What is the temperature on Tuesday?
To find the temperature on Tuesday, we need to subtract 13° from the temperature on Monday.
Temperature on Monday: -4°C
Temperature on Tuesday: -4°C - 13°C = -17°C
Therefore, the temperature on Tuesday is -17°C.
Ping dove off a 10 meter platform. He reached a depth of 6 meters in the water. What was the change in height?
To find the change in height, we need to subtract the initial height from the final depth.
Initial height: 10 meters
Final depth: 6 meters
Change in height: Initial height - Final depth
Change in height: 10 meters - 6 meters = 4 meters
Therefore, the change in height is 4 meters.
A parasail is 1/20 of a meter above the water. Then, after 10 minutes, the parasail is 1/50 of a meter above the water. What is the change in height?
To find the change in height, we need to subtract the initial height from the final height.
Initial height: 1/20 of a meter
Final height: 1/50 of a meter
Change in height: Final height - Initial height
Change in height: (1/50) - (1/20)
To subtract fractions, we need a common denominator. So we find the least common denominator (LCD), which is 100 in this case.
(1/50) - (1/20) = (2/100) - (5/100) = -3/100
Therefore, the change in height is -3/100 of a meter.