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vampirchik [111]
3 years ago
10

A shopper bought shoes marked 40$ the sales tax is 8% how much did the shopper pay in all

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
6 0

Answer:

43.20

Step-by-step explanation:

First we need to find the sales tax

tax = price * tax rate

tax = 40 * 8%

     = 40*.08

      =3.2

We final cost is the price plus the sales tax

final cost = price + tax

                = 40+3.2

                = 43.20

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Ilia_Sergeevich [38]

Answer:

3

Step-by-step explanation:

Common factors : what make up a number (they will be all prime)

6 - 2, 3

9 - 3,3

the common factor is three (its what they have in common)

3 0
3 years ago
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What is the median of this set of data: 593, 588, 540, 434, 420, 398, 390, 375
Anna [14]
C. 427

The median is the middle number of all the data

Since there is an even number of data points the median is in between the middle two data points (434 and 420)

To find this: 434-420=14
14/2=7
434-7=427
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8 0
2 years ago
Suppose that scores on the mathematics part of a test for eighth-grade students follow a Normal distribution with standard devia
riadik2000 [5.3K]

Answer:

We need an SRS of scores of at least 153.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

How large an SRS of scores must you choose?

This is at least n, in which n is found when M = 20, \sigma = 150. So

M = z*\frac{\sigma}{\sqrt{n}}

20 = 1.645*\frac{150}{\sqrt{n}}

20\sqrt{n} = 1.645*150

\sqrt{n} = \frac{1.645*150}{20}

\sqrt{n} = 12.3375

(\sqrt{n})^{2} = (12.3375)^{2}

n = 152.2

Rounding to the next whole number, 153

We need an SRS of scores of at least 153.

8 0
3 years ago
What do I need to subtract from to get angle two?
ololo11 [35]
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Step 2) Subtract the result (found in step one) from 360
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The answer is 43

3 0
2 years ago
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Anika [276]

Answer:

Step-by-step explanation:

4/5 is the same as 4 divided by 5.


you had 4/5 of a cookie. How much percent did you have ?

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