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2 years ago

The regular price of an item is $35. the item is on sale with a discount of $10. what is the discount rate?

Mathematics

1 answer:

salantis [7]2 years ago

5 0

About 29 percent. you would do 10*100/35=28.87 you would round up to 29 percent

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What is the first step in solving for the solution to this problem? 2(m + 10) = 4(m -15)

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Answer:

Multiplying the variables and numbers in the parentheses by the number next to them.

Step-by-step explanation:

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3 years ago

The average daily volume of a computer stock in 2011 was ų=35.1 million shares, according to a reliable source. A stock analyst

Shtirlitz [24]

Answer:

The null hypothesis is $H_o : \mu = 35 .1 \ million \ shares$

The alternative hypothesis $H_a : \mu \ne 35.1\ million \ shares$

The 95% confidence interval is $27.475 < \mu < 37.925$

Step-by-step explanation:

From the question the we are told that

The population mean is $\mu = 35.1 \ million \ shares$

The sample size is n = 30

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The standard deviation is $\sigma = 14.6 \ million\ shares$

Given that the confidence level is $95\%$ then the level of significance is mathematically represented as

$\alpha = 100-95$

$\alpha = 5\%$

=> $\alpha = 0.05$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table

The value is $Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{ \sigma }{\sqrt{n} }$

substituting values

$E = 1.96 * \frac{ 14.6 }{\sqrt{30} }$

$E = 5.225$

The 95% confidence interval confidence interval is mathematically represented as

$\= x -E < \mu < \= x +E$

substituting values

$32.7 - 5.225 < \mu < 32.7 + 5.225$

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

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uysha [10]

Step-by-step explanation:

Let b is breadth and l is length of the cuboid such that,

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h = l/2

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V = lbh

Put all the values,

$V=l\times \dfrac{l}{3}\times \dfrac{l}{2}\\\\750=l\times \dfrac{l}{3}\times \dfrac{l}{2}\\\\750\times 6=l^3\\\\l=(750\times 6)^{1/3}\\\\l=16.5\ cm$

Breadth, b = 16.5/3 = 5.5 cm

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2 years ago

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lana [24]

Answer:

Step-by-step explanation:

25+k=32

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3 years ago

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