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3 years ago

What is the sales tax rate?

Mathematics

1 answer:

Allisa [31]3 years ago

8 0

Hello there! We are solving for the tax rate, so let's start off by subtracting both prices. 4.32 - 4.00 is 0.32. That's a 32 cent difference in the price. Now, let's divide that number by the original price to find the percentage. 0.32/4 is 0.08. Multiply that number by 100 and that is 8%. There. The sales tax rate is 8%.

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A survey of 280 homeless persons showed that 63 were veterans. Construct a 90% confidence interval for the proportion of homeles

MA_775_DIABLO [31]

Answer:

[0.184, 0.266]

Step-by-step explanation:

Given:

Number of survey n =280

Number of veterans = 63

Confidence interval = 90%

Computation:

Probability of veterans = 63/280

Probability of veterans =0.225

a=0.1

Z(0.05) = 1.645 (from distribution table)

Confidence interval = 90%

So,

p ± Z*√[p(1-p)/n]

0.225 ± 1.645√(0.225(1-0.225)/280)

[0.184, 0.266]

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3 years ago

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Answer:

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2 years ago

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Fed [463]

Angle 1 is a right angle =90 °
so 5x-85=90
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3 years ago

Help asap Which explains how to find the quotient of the division below? -3 1/3 divided by 4/9

noname [10]

Answer:

$-7\frac{1}{2}$

Step-by-step explanation:

To find the quotient, convert the mixed number to an improper fraction first

$-3\frac{1}{3}=-\frac{3*3+1}{3}=-\frac{10}{3}$

Find the quotient now

$\frac{(-10/3)}{(4/9)}=-\frac{10*9}{4*3}\\ \\=-\frac{90}{12}$

Simplify

Divide by $6$ both numerator and denominator

$=-\frac{15}{2}=-7.5$

Convert to a mixed number

$-7.5=-(7+0.5)=-(7+\frac{1}{2})=-7 \frac{1}{2}$

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3 years ago

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Polygon pqrst shown on the grid below is a image of polygon pqrst after dilation with a scale factor of 3 keeping the origin as

Savatey [412]

Answer: The sides are increase by a factor of 3 and the angles remain the same.

When you are performing a dilation, you multiply the coordinates by 3. This will increase the length of all the sides by a factor of 3. However, the measures of the angles will remain the same. We call these similar figures.

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3 years ago