1. Laura buys a pack of 24 blueberry muffins that has a total

Mathematics

2 answers:

KATRIN_1 [288]3 years ago

8 0

Answer:

192

Step-by-step explanation:

you have divide 24 by 3 and once you get that you get 8 then you do the amount of calories divide by 8

ohaa [14]3 years ago

5 0

Divide 1,536 by 24 to find out how many calories are in 1 muffin. Then multiply by 3.

1536/24 = 64

64 x 3 = 192

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Brianna received an overall IQ score of 117 on the Wechsler Scale. This means that Brianna has scored approximately____________

Tresset [83]

Using the normal distribution, it is found that the correct option is:

D. 1; 100

In a <em>normal distribution</em> with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

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

It measures how many standard deviations the measure is from the mean.

In this problem:

The mean on the Wechsler Scale is of 100, hence $\mu = 100$ .

The standard deviation is of 17, hence $\sigma = 17$ .

Brianna had an score of 117, hence $X = 117$

Then:

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

$Z = \frac{117 - 100}{17}$

$Z = 1$

Hence, the option d is correct.

To learn more about the normal distribution, you can check brainly.com/question/24663213

7 0

3 years ago

^ need help !!!!!!!!!!!!!!!!!!!!

elena-14-01-66 [18.8K]

First set up the equation to find answer: y=7-x. Then add it to the variable. 3x-1(7-x)=1. So that makes it 3x+-7+-1=1. Add like terms -7+-1=-8, so 3x+-8=1. Now to find x just switch the 8 to the other side. So you end up with 3x=9 since when you take away a number from one side you need to use the opposite value so adding 8 to -8 will cancel it out, then add it to the other, then just divide. 9/3=3, from here just substitute to find y. y=7+3. y=10. The answer is x=2 and y=5. I hope I helped!