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valkas [14]
3 years ago
13

A student bought a juice pouch for $2.50 and 3 bags of chips . The total cost was $5.05 write and solve an equation to determine

the cost of a bag of chips
Mathematics
2 answers:
Rainbow [258]3 years ago
8 0
Do 5.05 minus 2.50 and your would get 2.55 then you would divide that by 3 and you would get 85 cents per bag of chips
svetoff [14.1K]3 years ago
5 0
You have to subtract $2.50 and $5.05 then you divide that with 3 and you should get $0.85
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PSYCHO15rus [73]

Using the normal distribution, it is found that the two readings that are cutoff values separating the rejected thermometers from the others are -1.96ºC and 1.96ºC.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

\mu = 0, \sigma = 1.

The z-score that cuts off the bottom and top 2.5% of the distribution is z = \pm 1.96, hence:

Z = \frac{X - \mu}{\sigma}

-1.96 = \frac{X - 0}{1}

X = -1.96

Z = \frac{X - \mu}{\sigma}

1.96 = \frac{X - 0}{1}

X = 1.96

The two readings that are cutoff values separating the rejected thermometers from the others are -1.96ºC and 1.96ºC.

More can be learned about the normal distribution at brainly.com/question/27879230

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3 0
2 years ago
What value of x makes the equation 1/9x+6=8 true
Mademuasel [1]

Answer:

18

Step-by-step explanation:

Subtract 6 from both sides so the equation becomes 1/9x=2. Multiply by the reciprocal on both sides (9)1/9x=2(9).

This cancels out to x=18

6 0
2 years ago
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vodomira [7]

<em>Answer:</em>

<em>√81 = 9 </em>

<em>Step-by-step explanation:</em>

<em>√(32+42) = √74</em>

<em>√64 < √74 < √81</em>

<em>       +10 ⇔ +7</em>

<em>the nearest whole number √81 = 9 </em>

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Pavel [41]
Answer:

-2948

Step-by-step explanation:

Two signs (addition and subtraction) together makes subtraction when having a positive sign and a negative sign

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2 years ago
Use the graph if y=f(x) below to find f(4)<br>​
ololo11 [35]

Answer:

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2 years ago
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