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3 years ago

PLEASE HELP IM STUPID IDK HOW IM IN 7th GRADE BUT WHATEVA IM NOT DUMB HALF OF THE TIME

Mathematics

1 answer:

Dovator [93]3 years ago

3 0

The probability is 9 put of 28 u add them all up that's ur total and then the number of blue bags of yarn is the chance you'll get

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pyramid A has a volume of 60mm and pyramid B has a volume of 937.5mm what is the ratio of the heights

dexar [7]

Answer:I think 0.4

Step-by-step explanation: Hope this helps

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2 years ago

A flute is on sale for 20% off. Including the discount and 8% tax, the sales price is $216.

Len [333]

Answer:

Before Tax: $240

After Tax: $259.20

Step-by-step explanation:

If we are trying to find the original price then here:

216/1.08 = 200

This took away the tax now we need to take away the discount:

200 x 1.2 = 240

Before Tax: $240

After Tax: $259.20

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3 years ago

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Two step educations 3c - 6 = 12

N76 [4]

Answer:

C = 6

Step-by-step explanation:

Move all terms that don't contain C to the right side and solve.

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3 years ago

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Help me please i will give brainliest.

kari74 [83]

Answer:

1) 13 Students were surveyed

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3 years ago

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ABC Auto Insurance classifies drivers as good, medium, or poor risks. Drivers who apply to them for insurance fall into these th

Misha Larkins [42]

Answer:

a. $P(E_1/A)=0.0789$

b. $P(E_2/A)=0.395$ \

c. $P(E_3/A)=0.526$

Step-by-step explanation:

Let $E_1,E_2,E_3$ are the events that denotes the good drive, medium drive and poor risk driver.

$P(E_1)=0.30,P(E_2)=0.50,P(E_3)=0.20$

Let A be the event that denotes an accident.

$P(A/E_1)=0.01$

$P(A/E_2=0.03$

$P(A/E_3)=0.10$

The company sells Mr. Brophyan insurance policy and he has an accident.

a.We have to find the probability Mr.Brophy is a good driver

Bayes theorem, $P(E_i/A)=\frac{P(A/E_i)\cdot P(E_1)}{\sum_{i=1}^{i=n}P(A/E_i)\cdot P(E_i)}$

We have to find $P(E_1/A)$

Using the Bayes theorem

$P(E_1/A)=\frac{P(A/E_1)\cdot P(E_1)}{P(E_1)\cdot P(A/E_1)+P(E_2)P(A/E_2)+P(E_3)P(A/E_3)}$

Substitute the values then we get

$P(E_1/A)=\frac{0.30\times 0.01}{0.01\times 0.30+0.50\times 0.03+0.20\times 0.10}$

$P(E_1/A)=0.0789$

b.We have to find the probability Mr.Brophy is a medium driver

$P(E_2/A)=\frac{0.03\times 0.50}{0.038}=0.395$

c.We have to find the probability Mr.Brophy is a poor driver

$P(E_3/A)=\frac{0.20\times 0.10}{0.038}=0.526$

7 0

3 years ago