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Dmitriy789 [7]
2 years ago
5

In the Summer Olympic Games in rio (2016), the mens 4 by 400 meter (1600) meters in total) relay team ran the race in 2:57.30 (2

minuets 57.30 seconds) to win the gold metal. what is the teams average speed in miles per hour? use unit fractions to solve the problem and round the result to three significant digits. clearly show your process.
my answers were 23.2 mph and 20.18 miles per hour, are either of those correct?
Mathematics
1 answer:
Maksim231197 [3]2 years ago
4 0

Answer:123

Step-by-step explanation:

e.

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Answer:

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a) To write the equation for these problems, let's establish the constant, $250, since we are given that $250 is a FIXED cost, meaning no matter how many brochures we print, we will have to pay $250. Then, we have to pay $1.25 for each brochure, so for n amount of brochures, so we have 1.25*n. Putting it together, we have the fixed cost + the cost of producing n brochures, C = 250 + 1.25C

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c) This is the opposite question, since 625 is the final cost, we plug it into the final cost, 625 = 250 + 1.25*n. Solving gives n = 300

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