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taurus [48]
3 years ago
11

HELP HELP HELP HELP HELP HELP HELP HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
alexira [117]3 years ago
4 0

Answer: A. $6x + $27 < $87

Step-by-step explanation:

Your question says “...x represents the number of times he eats out”, when he eats out its $6, so that means obviously that the x would be by the 6 and the less then symbol would be facing 87 cause your wont to spend less then that amout.

Have a good day and stay safe :)

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Four times the difference of b and six is equal to b squared
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Paige went to a hair stylist to get a haircut. Her bill came to $52.00, and she left an 18% tip. How much did she spend in all?
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Why is a sample of 1000 people better than a sample of 100 people?
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Read 2 more answers
The amount of time a certain brand of light bulb lasts is normally distribued with a mean of 1300 hours and a standard deviation
Bezzdna [24]

Answer:

The interval of hours that represents the lifespan of the middle 68% of light bulbs is 1210 hours - 1390 hours.

Step-by-step explanation:

In statistics, the 68–95–99.7 rule, also recognized as the Empirical rule, is a shortcut used to recall that 68%, 95% and 99.7% of the values lie within one, two and three standard deviations of the mean, respectively.

Then,

  • P (µ - σ < X < µ + σ) = 0.68
  • P (µ - 2σ < X < µ + 2σ) = 0.95
  • P (µ - 3σ < X < µ + 3σ) = 0.997

he random variable <em>X</em> can be defined as the  amount of time a certain brand of light bulb lasts.

The random variable <em>X</em> is normally distributed with parameters <em>µ</em> = 1300 hours and <em>σ</em> = 90 hours.

Compute the interval of hours that represents the lifespan of the middle 68% of light bulbs as follows:

P (\mu - \sigma < X < \mu + \sigma) = 0.68\\\\P(1300-90

Thus, the interval of hours that represents the lifespan of the middle 68% of light bulbs is 1210 hours - 1390 hours.

4 0
3 years ago
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