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3 years ago

10x-35+3ax=5ax-7a solve for "a" for which the equation is an identity.

2 answers:

8 0

$10x-35+3ax=5ax-7a \\\\ 3ax-5ax+7a = -10x+35 \\\\ -2ax+7a = -10x+35 \\\\ a(-2x+7)=-10x+35 \\\\ a= \frac{-10x+35}{-2x+7} \\\\ a = \frac{5(-2x+7)}{(-2x+7)} \\\\ a=5$

ella [17]3 years ago

6 0

You can solve it by using PEMDAS

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Answer:

Step-by-step explanation:

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3 years ago

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lbvjy [14]

Answer:

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Adding and subtracting what is the solution to x = 4 = 12

marshall27 [118]

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3 years ago

The Cool Company determines that the supply function for its basic air conditioning unit is S(p) = 10 + 0.002p3 and that its dem

Radda [10]

Answer: At $21.85, the supply will equal to demand.

Step-by-step explanation:

Since we have given that

Demand function is given by

$D(p) = 50 - 0.04p^2, \text{where p is the price.}$

Supply function is given by

$S(p) = 10 + 0.002p^3$

According to question, we need to find the price for which the supply equals the demand, i.e. Equilibrium price and quantity.

$D(p)=S(p)\\\\50-0.04p^2=10+0.002p^3\\\\50-10=0.002p^3+0.04p^2\\\\40=\frac{2}{1000}p^3+\frac{4}{100}p^2\\\\40=\frac{2}{100}p^2(\frac{1}{10}p+2)\\\\\frac{40\times 100}{2}=p^2(\frac{1p+20}{2})\\\\\mathrm{The\:Newton-Raphson\:method\:uses\:an\:iterative\:process\:to\:approach\:one\:root\:of\:a\:function}\\\\p\approx \:21.85861\dots$

So, at $21.85, the supply will equal to demand.

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3 years ago

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Yakvenalex [24]

28 units cubed I believe to be the right answer

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