5×60 minutes =300 minutes
300+15 minutes or 1/4hr
315 minutes each week
15+60+30+45+15+45=210 minutes
300-210= 90 minutes
Area model is used to illustrate multiplication and division operations.
See attachment for the area model
The equation can be represented as:

Express 2080 as 1200 + 800 + 80

Express as

Divide

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Read more about area models at:
brainly.com/question/18533236
Answer:
-8
Step-by-step explanation:
The way to solve this question is to essentially reverse the equation I used in the other answer.
I would solve this with some theoretical values. If you start with 3, how long would it take for it to triple, or reach 9.
the equation would look like 9 = 3(2)^t/6, note how the instead of 1/2 it is now 2 in the parenthesis, as it doubles every 6 hours rather than halves every amount of hours.
When placed into an algebra calculator, the answer should be about 9.5 hours