MATHEMATICS MIDDLE SCHOOL

Determine what type of model best fits the given situation: Farmer Joe has 1,000 bushels of corn to sell. Presently the market price for corn is $5.00 a bushel. He expects the market price to increase by $0.15 per week. For each week he waits to sell, he loses ten bushels due to spoilage. A. none of these B. exponential C. quadratic D. linear

Answers

Answer 1
Answer:

Answer:

The correct option is;

C. Quadratic

Step-by-step explanation:

The given information are;

The quantity of corn Farmer Joe has to sell = 1,000 bushels

The present market price for corn = $5.00 a bushel

The amount by which he expects the market price to rise per week =$0.15

The number of bushels lost to spoilage per week = 10

Therefore, we have;

The value of the corn = Amount of corn left × Price of corn

The price of the corn per bushel with time = 5 + 0.15×t

The amount of corn left = 1000 - 10×t

Where;

t = Time in minutes

Therefore, the total value of corn = (1000 - 10×t)×(5 + 0.15×t) = -1.5·t²+100·t+5000 which is a quadratic model.

Therefore, the correct option is a quadratic model.
Answer 2
Answer: C. quadratic is the answer

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PLEASE ANSWER ASAP! EXTWEMELY IMPORTANT! MUST BE CORRECT! POINTS GIVEN!Devon stated that when a positive and a negative integer are multiplied together the answer will be negative. Use these integers to answer the questions: –12, –7, 11, 16

Is Devon’s statement always true, sometimes true, or always false? Write two equations to support your answer.

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the asnwer is alway true because negative means reverse and positive makes the thing stay the ssame
basically a positive is a blank thing that doesn't do anything while a negative makes change happen (opposite)
with 1 blank thing and an opposite, we get an oposite

so we havve -7 times +11
we can factor out the -1 in -7 so we get
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if you have -x times +z that equals -1 times (x times z) and since x and z are both positive, they remain so, but the -1 makes it negative

so this statement is always true
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11 x -7=-77

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