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Zina [86]
3 years ago
6

50 POINTS!!!From 1970 to 1990, the average cost of a new car C (in dollars) car aproximated by the model C= 30.5p^2 + 4192 where

t is the number of vears since 1970. During which year was the average cost of a new car $7242?
Mathematics
1 answer:
ehidna [41]3 years ago
4 0

Answer:

The answer is 1980

Step-by-step explanation:

can you pls choose me as brainliest

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Answer:

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General Formulas and Concepts:

<u>Pre-Algebra</u>

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<u>Algebra I</u>

<u />

Step-by-step explanation:

<u>Step 1: Define</u>

6c - 1 - 4c = -49

<u>Step 2: Solve for </u><em><u>c</u></em>

  1. Combine like terms:                     2c - 1 = -49
  2. Isolate <em>c</em> term:                               2c = -48
  3. Isolate <em>c</em>:                                        c = -24
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