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Sidana [21]
3 years ago
9

Solve for x: 4(3x8-x)=4

Mathematics
2 answers:
mr_godi [17]3 years ago
7 0

Answer:

x=23

Step-by-step explanation:

4(3\cdot8-x)=4

Divide both sides by 4:

\implies 3\cdot8-x=1

Add x to both sides:

\implies 3\cdot8=x+1

Multiply 3 × 8:

\implies 24=x+1

Subtract 1 from both sides:

\implies 23=x

poizon [28]3 years ago
5 0

Step-by-step explanation:

4\left(3\cdot \:8-x\right)=4

\mathrm{Divide\:both\:sides\:by\:}4

\frac{4\left(3\cdot \:8-x\right)}{4}=\frac{4}{4}

Simplify

24-x=1

\mathrm{Subtract\:}24\mathrm{\:from\:both\:sides}

24-x-24=1-24

Simplify

-x=-23

\mathrm{Divide\:both\:sides\:by\:}-1

\frac{-x}{-1}=\frac{-23}{-1}

Simplify

x=23

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Answer:

Step-by-step explanation:

The 20% discount amounted to ...

  0.20 × $42.00 = $8.40

so the price before tax was ...

  $42.00 -8.40 = $33.60

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So the total price paid for the shirt was ...

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Randy paid $34.61 for the shirt after discount and tax.

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<em>Alternate solution</em>

You can realize that the 20% discount means that Randy will pay 80% of the original price of the shirt. Similarly, the 3% added tax means Randy will finally pay 103% of the discounted price. Then the total price Randy pays is ...

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monitta

Answer: B. 2=3x+10x^2

Step-by-step explanation:

The expression means the quadratic function equation.

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Stella [2.4K]

Step-by-step explanation:

Marked price (MP) = x

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