Answer:
The sample would double in 9 hours
Step-by-step explanation
The number of hours it will take for the sample to double can be found using the 72 rule.
The 72 rule is such that a growth rate would double itself by it is used in dividing the number 72 as shown below:
number of hours =72/8=9 hours
The number of hours it would take the sample to double is 9 hours as computed above.
First find 25% of 21.5. You can do this by multiplying .25 by 21.5. That gives you 5.375. Subtract that from 21.5. That gives you 16.125. Money only has two decimal places so round 16.125 up to 16.13 and that's your answer! <3
The numerator is 16 and the denominator is 3.
Answer:
-15.
Step-by-step explanation:
The temperature dropped 3°c every hour.
So, the change in temperature every hour = -3°C.
Total number of hours for which the temperature were changed =5.
Thus, the total change in temperature = change for an hour x total number of hours,
= -3° x 5
= -15°.
