2 years ago

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:

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

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

$CV = \frac{36.33}{1100}$

$CV = 0.033$

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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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Kendall's brother, Arnold bought a plate at this store, and he also payed 3% in sales tax. Arnold paid a total of 0.72 in sales

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

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