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Marta_Voda [28]
3 years ago
7

A business owner pays $1,200 per month in rent and a total of $120 per hour in employee salary for each hour the store is open.

On average, the store brings in $200 in net sales per hour.
Which equation can be solved to determine the break-even point if x represents the number of hours per month the store is open?

200x – 120x = 1,200
120x + 200x = 1,200
200x + 1,200 = 120x
120x – 1,200 = 200x
Mathematics
2 answers:
Dmitry [639]3 years ago
8 0

Answer:

200x - 120x = 1,200

Step-by-step explanation:

The break-even point is when the amount of money he spends equals the amount he earns.  

Let's see how much he earns and how much he spends per month:

He earns $200 per hour. If x represents the number of hours per month, we can write the earns as 200x.

He spends $1,200 per month and $120 per hour. We can write it as 1,200 + 120x.

So, we need 200x = 1,200 + 120x

We don't have this exact equation in our options but if we subtract 120x from both sides, we have:

200x - 120x = 1,200 + 120x - 120x

200x - 120x = 1,200

The correct answer is the first equation.

Angelina_Jolie [31]3 years ago
7 0

Answer: I'm pretty sure it's 200x - 120x = 1,200

Step-by-step explanation:

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Answer:

c) 50

Step-by-step explanation:

We have been given that the mean life of a particular brand of light bulb is 1200 hours. About 95% of this brand of bulbs will last between 1100 and 1300 hours.

We will use z-score formula to solve our given problem.

z=\frac{x-\mu}{\sigma}, where,

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x=\text{Sample score},

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We know that 95% of data points lies within two standard deviation of mean, so 1100 will correspond to a z-score of -2 and 1300 will correspond to a z-score of 2.

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\sigma=\frac{-100}{-2}

\sigma=50

We can use sample score 1300 and get same answer as:

2=\frac{1300-1200}{\sigma}

2=\frac{100}{\sigma}

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Vanyuwa [196]

quelle est ta question?


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Answer:

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Step-by-step explanation:

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Check your math:

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