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3 years ago

6

a car brought for sh 80,000 was sold through a dealer at a profit of 15% commission on the selling price.how much did the owner

get?

1 answer:

Luba_88 [7]3 years ago

6 0

80,000x.15 or 15% = 12,000

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3 years ago

viktelen [127]

Domain: x>0.

$(\log_2x)^2+7\log_2x+12=0$

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For t₁ there will be:

$\log_2x=t_1\\\\\log_2x=-4\\\\2^{-4}=x\\\\x=\dfrac{1}{2^4}\\\\\\x=\dfrac{1}{16}=0,0625\\\\\\\boxed{x\approx0,063}$

and for t₂:

$\log_2x=t_2\\\\\log_2x=-3\\\\2^{-3}=x\\\\x=\dfrac{1}{2^3}\\\\\\x=\dfrac{1}{8}\\\\\\\boxed{x=0,125}$

Answer d)

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2 years ago