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VladimirAG [237]

3 years ago

13

Kyle bought x candy bars. He paid $0.89, including tax, per candy bar. He gave the cashier $10 and received $3.77 in change. How

many candy bars did Kyle purchase?

2 answers:

PIT_PIT [208]3 years ago

4 0

Answer:

I think 7

Step-by-step explanation:

aleksandr82 [10.1K]3 years ago

4 0

Answer:

Without tax, it is 7. How much is the tax?

Step-by-step explanation:

10.00 - 3.77 = 6.23

0.89 x 7 = 6.23

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Scores on an exam follow an approximately bell shaped distribution with a mean of 76.4 and a standard deviation of 6.1 points. A

Crazy boy [7]

Answer:

b) 95%

Step-by-step explanation:

We have been given that scores on an approximately bell shaped distribution with a mean of 76.4 and a standard deviation of 6.1 points. We are asked to find the percentage of the data that is between 64.2 points and 88.6 points.

First of all, we will find z-scores of each data point as:

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

$z=\frac{64.2-76.4}{6.1}$

$z=\frac{-12.2}{6.1}$

$z=-2$

Let us find z-score corresponding to normal score 88.6.

$z=\frac{88.6-76.4}{6.1}$

$z=\frac{12.2}{6.1}$

$z=2$

To find the percentage of the data is between 64.2 points and 88.6 points, we need to find area under a normal distribution curve that lie within two standard deviation of mean.

The empirical rule of normal distribution states that approximately 95% of data points fall within two standard deviation of mean, therefore, option 'b' is the correct choice.

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4 years ago

Witch direction we move to decimal to left or right in other to get 750 meters?

matrenka [14]

Answer:

it depends which you are converting from

4 0

3 years ago

Find all the values of x in the set of complex numbers that satisfy the following equation:

Fynjy0 [20]

Compute all the component integrals first:

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Now,

$\sqrt2\approx1.4\implies \sqrt2+1\approx2.4$
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$e$
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So the given equation reduces to

$\displaystyle\sum_{k=-1}^2\frac{\mathrm d}{\mathrm dx}x^{k+2}=1-4!$
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ELEN [110]

D because it shows the . of each percentage

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Which box has a volume of 125 cubic feet?

spin [16.1K]

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