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chubhunter [2.5K]
2 years ago
14

Rewrite this division expression as an equivalent multiplication expression. 9/4 divided by 7/5 ​

Mathematics
1 answer:
Vesnalui [34]2 years ago
5 0

Step-by-step explanation:

9/4 divided by 7/5

= 9/4 multiplied by 5/7

= 9/4 * 5/7.

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The cost of a week long vacation in a city has a mean of 1000 and a variance of 1200. The city imposes a tax which will raise al
matrenka [14]

Answer:

The coefficient of variation after the tax is imposed is 0.033

Step-by-step explanation:

Given

\mu =1000 --- mean

\sigma^2 = 1200 --- variance

tax = 10\%

Required

The coefficient of variation

The coefficient of variation is calculated using:

CV = \frac{\sqrt{\sigma^2}}{\mu}

After the tax, the new mean is:

\mu_{new} = \mu * (1 + tax)

\mu_{new} = 1000 * (1 + 10\%)

\mu_{new} = 1100

And the new variance is:

\sigma^2_{new} = \sigma^2 * (1 + tax)

\sigma^2_{new} = 1200 * (1 + 10\%)

\sigma^2_{new} = 1320

So, we have:

CV = \frac{\sqrt{\sigma^2}}{\mu}

CV = \frac{\sqrt{1320}}{1100}

CV = \frac{36.33}{1100}

CV = 0.033

6 0
3 years ago
66 + 2bc – 46; b= 10, c=5
iren2701 [21]

Answer:

120

Step-by-step explanation:

66 + (2* 10*5)- 46

66+20×5−46

66+100−46

166−46

= 120

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B is your answer
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