Chris and Bianca got 80 points in all the spelling contest each child got more than 20 points could each child have gotten.

Mathematics

2 answers:

Nina [5.8K]3 years ago

6 0

What is the question?

ivolga24 [154]3 years ago

6 0

How many points could each child have gotten?

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Kathleen, Penny, and Megan all order 12-ounce smoothies. After 5 minutes, Kathleen still has 3/4 left, Penny has 5/6 left, and M

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Penny has the most left of her smoothie
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the common denominator is 24
convert all the fraction accordingly
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3 years ago

What is the slope of the line that passes through the points (3, -2) and (9, -2)?

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Answer:

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Step-by-step explanation:

3+6=9

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3 years ago

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hichkok12 [17]

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Final exam scores are normally distributed with a mean of 74 and a standard deviation of 6. Approximately, what percentage of fi

notka56 [123]

Answer:

81.86%

Step-by-step explanation:

We have been given that final exam scores are normally distributed with a mean of 74 and a standard deviation of 6.

First of all we will find z-score using z-score formula.

$z=\frac{x-\mu}{\sigma}$

$z=\frac{68-74}{6}$

$z=\frac{-6}{6}=-1$

Now let us find z-score for 86.

$z=\frac{86-74}{6}$

$z=\frac{12}{6}=2$

Now we will find P(-1<Z) which is probability that a random score would be greater than 68. We will find P(2>Z) which is probability that a random score would be less than 86.

Using normal distribution table we will get,

$P(-1$