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Sloan [31]
3 years ago
14

(3x^4)-5=43How?? It's supposed to be - 2?​

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
6 0

Answer:

I got 2 as an answer

Step-by-step explanation:

( {3x}^{4} ) - 5 = 43 \\ ( {3x}^{4} ) = 43 + 5 \\ ( {3x}^{4} ) = 48 \\  \frac{ {3x}^{4} }{3}  =  \frac{48}{3}

{x}^{4}  = 16 \\  \sqrt[4]{ {x}^{4} }  =  \sqrt[4]{16}  \\ x = 2

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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
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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>

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<u />

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

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

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

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<u>a) System</u>

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

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  •  90 = 2t + 1.50v

  • 10 = 0.5v
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<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>

  • $2(40) + $1.50(15) = $80 + $22.50 = $102.50

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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