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2 years ago

Lorena paid $450 for a sneaker and there is a 9% advertised discount. What is the discount price?

Mathematics

2 answers:

GarryVolchara [31]2 years ago

3 0

Answer:

$40.50

Step-by-step explanation:

9% of 450 is 40.5

Delvig [45]2 years ago

3 0

Answer: $409.50

ok so, original price 450. 9% discount. discount price is the price after discount, so lets find the discount value. 9% of 450 is 40.5. now subtract that from the original price of 450. 450-40.5=409.50

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padilas [110]

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

I need help asap i don’t get it

Zolol [24]

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5 0

3 years ago

The joint probability mass function of XX and YY is given by p(1,1)=0p(2,1)=0.1p(3,1)=0.05p(1,2)=0.05p(2,2)=0.3p(3,2)=0.1p(1,3)=

inessss [21]

Answer:

P(Y=1|X=3)=0.125

Step-by-step explanation:

Given :

p(1,1)=0

p(2,1)=0.1

p(3,1)=0.05

p(1,2)=0.05

p(2,2)=0.3

p(3,2)=0.1

p(1,3)=0.05

p(2,3)=0.1

p(3,3)=0.25

Now we are supposed to find the conditional mass function of Y given X=3 : P(Y=1|X=3)

P(X=3) = P(X=3,Y=1)+P(X=3,Y=2) +P(X=3,Y=3)

P(X=3)=p(3,1) +p(3,2) +p(3,3)

P(X=3)=0.05+0.1+0.25=0.4

$P(Y=1|X=3)=\frac{P(X=3,Y=1)}{P(X=3)} =\frac{p(3,1)}{P(X=3)}=\frac{0.05}{0.4}= 0.125$

Hence P(Y=1|X=3)=0.125

8 0

3 years ago