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3 years ago

Mrs delles spent 120$ on a bag that was discounted 25%, what was the original price.

Mathematics

2 answers:

luda_lava [24]3 years ago

7 0

Answer:

480

Step-by-step explanation:

RideAnS [48]3 years ago

6 0

The price is $90. They got $30 off of the item

Site:https://www.percent-off.com/_25_discount

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Step-by-step explanation:

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3 years ago

To avoid detection at customs, a traveler places 6 narcotic tablets in a bottle containing 9 vitamin tablets that are similar in

lukranit [14]

Answer: $\dfrac{26}{27}$

Step-by-step explanation:

Given : To avoid detection at customs, a traveler places 6 narcotic tablets in a bottle containing 9 vitamin tablets that are similar in appearance.

Proportion of success : $p=\dfrac{6}{9}=\dfrac{2}{3}$

Sample size taken by customs oﬃcial : n= 3

Let x be a binomial variable that represents the tablets in the bottle.

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$P(X=x)=^nC_xp^x(1-p)^{n-x}$

The probability that the traveler will be arrested for illegal possession of narcotics = $P(x\geq1)=1-P(x=0)$

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3 years ago

Perchlorate is a chemical used in rocket fuel. People who live near a former rocket-testing site are concerned that perchlorate

ser-zykov [4K]

Answer:

$H_1 : \mu > 24.5$

Step-by-step explanation:

From the given information:

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The sample mean is 225.3 (ppb)

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Alternative hypothesis:

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The answer should be C

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