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natita [175]
3 years ago
11

You accept a job as a marine biologist that pays a salary of $45,000 the first year. During the next 39 years, you receive a 5.5

% raise each year. What is your total salary over the 40-year period? The equation you use for this problem is a1 = (r^n - 1/ r - 1)
I'll attach an example of the problem:

Mathematics
1 answer:
melamori03 [73]3 years ago
7 0
45000(1.055)^40=383980.89
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For a club gathering you were having, you bought a total of 50 burgers, and spent $90. You paid $2 per turkey burger, and $1.50
Sedaia [141]

Answer:

<u></u>

  • <u>No. You would have to cut the number of veggie burgers in more than half.</u>

Explanation:

<u>1. Model the situation with a system of equations</u>

<u />

<u>a) Name the variables:</u>

  • number of turkey burgers: t
  • number of veggie burgers: v

<u />

<u>b) Number of burgers:</u>

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<u />

<u>c) Cost of the 50 burgers:</u>

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<u>2. Solve that system of equations:</u>

<u />

<u>a) System</u>

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<u>b) Mutliply the first equation by 2 and subtract the second equation</u>

  • 100 = 2t + 2v
  •  90 = 2t + 1.50v

  • 10 = 0.5v
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<u />

<u>c) How much would you spend if the next year you buy the double of 20 turkey burgers (40) and the half of 30 veggie burgers (15)</u>

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Then, you if you double the number of turkey burgers, and cut the number burgers in half, you would spend more than $90 ($102.50).

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