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lorasvet [3.4K]
3 years ago
11

What is the percent markup on a 300 phone sold for 465

Mathematics
2 answers:
Tanzania [10]3 years ago
8 0

Answer:64.52%

Step-by-step explanation:

Nitella [24]3 years ago
8 0

Answer:

55%

Step-by-step explanation:

The percent markup is the percent increase from $300 to $465.

Subtract to find the markup: 465 - 300 = 165

Now we find the percent markup.

Divide: 165/300 = 0.55

Multiply: 0.55 * 100 = 55

Answer: 55%

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Explain why 2x^2+18a=10 has no real number solutions
Readme [11.4K]

Answer:

This equation does have real solutions contrary to your question. They are \frac{-9 + \sqrt{101}}  {-10} OR \frac{-9 - \sqrt{101}}  {-10}.

Step-by-step explanation:

In order to prove this has real number solutions, we simply need to use the quadratic formula. To do this, we first need to solve for 0.

2x^2 + 18x = 10

2x^2 + 18x - 10 = 0

Now that we have this and they are all factors of 2, we can divide everything by 2 for ease.

2x^2 + 18x - 10 = 0

x^2 + 9x - 5 = 0

Now we can use the quadratic equation to solve. Remember that A = 1 due to the coefficient of x^2, B = 9 as the coefficient of x and C = -5 as the constant.

\frac{-b +/- \sqrt{b^{2} - 4ac}}  {2a}

\frac{-9 +/- \sqrt{9^{2} - 4(1)(-5)}}  {2(-5)}

\frac{-9 +/- \sqrt{81 + 20}}  {-10}

\frac{-9 +/- \sqrt{101}}  {-10}

\frac{-9 + \sqrt{101}}  {-10} OR \frac{-9 - \sqrt{101}}  {-10}


6 0
3 years ago
Zola and her friends are going bowling. The bowling alley charges each person a $14 fee to rent shoes, plus $4.50 per game. Whic
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Answer:

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Step-by-step explanation:

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P.S. I'm doing this like:
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Step-by-step explanation:

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Answer:

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You then subtract the distributed number by 57

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