Answer: It will be 3 hours and 25 minutes before you are able to leave for the store.
Step-by-step explanation:
First solve the simple parts. Let’s convert the hours to minutes: 2 hours = 120 minutes.
Next we find out the 3/4 of an hour. 1/4 of an hour is 15 minutes so you add 15 three times (15+15+15) to get 45 minutes. Now you add up all the answers into an equation: 120+45. Your answer should be 165 minutes to perfect a recipe. Then the half hour part is 30 minutes. Add all this up and you get 195 minutes. Finally you simplify: 195 minutes = 3 hours and 25 minutes.
Answer: There are 2.25×10³⁴ bacteria at the end of 24 hours.
Step-by-step explanation:
Since we have given that
Number of bacteria initially = 1
It triples in number every 20 minutes.
So, 
So, our equation becomes
We need to find the number of bacteria that it will contain at the end of 24 hours.
So, it becomes,
Hence, there are 2.25×10³⁴ bacteria at the end of 24 hours.
Answer:
Step-by-step explanation:
Answer:
2143-764=1379
Step-by-step explanation:
