The minimum thickness of the book would simply be the sum of the thickness of the two cover pages and all the pages in between. That is:
minimum thickness = 0.9 mm * 2 + 0.13 mm * 400
minimum thickness = 53.8 mm
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Scientific notation is writing numbers as a product of a power of 10 to shorten them.
According to the information given, the system of inequalities that models the situation is given by:
<h3>System of inequalities:</h3>
For the system, the variables are:
- x is the number of hours that Pump 1 runs.
- y is the number of hours that Pump 2 runs.
They will run for at least 18 hours in a day but obviously no more than 24 hours in a day, hence:


Pump 1 can move 120 gallons per hour while Pump 2 can move 200 gallons per hour. In total the two pumps must move at least 3,000 gallons of water per day, hence:

You can learn more about system of inequalities at brainly.com/question/14361489
the equation of the line is
y = 6/5xy + 7/5x - 2/5
Answer: We will write ‘3’ in the second space. Therefore, the final number must be 2. 6 ÷ 3 = 2. There is a second way that we could use inverse operations to write this multiplication as a division
Step-by-step explanation: