Mikayla bought a coat that originally cost $200. It was on sale for 25% off. How much did she pay for the coat?

Mathematics

2 answers:

sergiy2304 [10]3 years ago

6 0

Answer:

she will pay $150

Step-by-step explanation:

this is because 25% of 200 is 150, you can check this by multiplying 200 by .75 (the 75% remaining cost of the coat) which should give you 150. you can also get this answer by finding the 25% of the cost of the coat which is $50 so you just subtract that from the $200

sveta [45]3 years ago

5 0

Mikayla paid $150 for the coat

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A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n indepe

-Dominant- [34]

Answer: 0.0031

Step-by-step explanation:

Binomial distribution formula :-

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Given : A binomial probability experiment is conducted with the given parameters.

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Now, $P(x\leq3)=P(3)+P(2)+P(1)+P(0)$

$=^9C_3(0.8)^3(1-0.8)^{9-3}+^9C_2(0.8)^2(1-0.8)^{9-2}+^9C_1(0.8)^1(1-0.8)^{9-1}+^9C_0(0.8)^0(1-0.8)^9\\\\=\dfrac{9!}{3!6!}(0.8)^3(0.2)^6+\dfrac{9!}{2!7!}(0.8)^2(0.2)^7+\dfrac{9!}{1!8!}(0.8)(0.2)^8+\dfrac{9!}{0!9!}(0.2)^9=0.003066368\approx0.0031$