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3 years ago

10

Zuri goes to a store where every item is on sale for 30% off the original price. If x represents the original price of one item,

what will be the sale price of the item?

1 answer:

jolli1 [7]3 years ago

6 0

Answer:

.3x - x

Example

My item is $100

.3(100) - $100

$30 - $100 = $70

$70 is the new price

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David bought a game on sale for $6 less than half its original price.she paid $88 for the jacket. What was the original price

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We can't tell with the information given. We don't know the connection
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This question is a lot like a radio station out in the country at night that's
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3 years ago

Which polynomial correctly combines the like terms and expresses the given polynomial in standard form?

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gavmur [86]

Answer:

Step-by-step explanation:

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At a real estate agency, an agent sold a house for $339,000. The commission rate is 6.5% for the real estate agency and the c

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Step-by-step explanation:

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3 years ago

Past experience has indicated that the breaking strength of yarn used in manufacturing drapery material is normally distributed

lana66690 [7]

Answer: $(95.2,\ 100.8)$

Step-by-step explanation:

Given : Past experience has indicated that the breaking strength of yarn used in manufacturing drapery material is normally distributed and that σ = 4 psi.

A random sample of 8 specimens is tested, and the average breaking strength is found to be 98 psi.

i.e. n= 8 and $\overline{x}=98$

Critical value for 95% confidence = $z_{\alpha/2}=1.96$

Confidence interval for population mean :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

i.e. $98\pm (1.96)\dfrac{4}{\sqrt{8}}$

$\approx98\pm 2.7719$

$=(98-2.7719,\ 98+2.7719)$

$=(95.2281,\ 100.7719)\approx(95.2,\ 100.8)$

Hence, a 95% two-sided confidence interval on the true mean breaking strength. = $(95.2,\ 100.8)$

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3 years ago