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fenix001 [56]
3 years ago
7

What properties are used to solve x/3+1=7​

Mathematics
1 answer:
natulia [17]3 years ago
8 0

Answer:

x=18

Step-by-step explanation:

x/3+1=7

-1=-1

x/3=6

×3=×3

x=18

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Answer:

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b. The university administration charges the fraternities a weekly fee of $500 for use of the Student Center. Write down the monthly profit P as a function of the unit price x, and hence determine how much the fraternities should charge to obtain the largest possible weekly profit. What is the largest possible weekly profit?

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Step-by-step explanation:

first, we must determine the slope = (400 - 240) / (3 - 5) = 160 / -2 = -80

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xy - 500 = -80x² + 640x - 500

max. profit ⇒ x = -640 / (2 x -80) = -640 / -160 = 4

maximum weekly profit = -80($4²) + 640($4) - $500 = -$1,280 + $2,560 - $500 = $780

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