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nignag [31]
2 years ago
14

How to multiply a ratio then divided by 3.

Mathematics
1 answer:
In-s [12.5K]2 years ago
6 0

Answer:

Heres the answer

Step-by-step explanation:

To calculate the ratio of an amount we divide the amount by total number of parts in the ratio then multiply the answer by original ratio.

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To do his homework for a drafting class, Axel needs a round table with an area of at least 45ft. What is the area of his parent’
Natasha2012 [34]

Answer:

About 38.48ft

Step-by-step explanation:

A=\pir^{2}

A=3.5^{2}\pi

A≈38.48

8 0
3 years ago
Tommy bought one dozen donuts. He gave one-sixth of the donuts to his wife. He then gave one-fifth of the remaining donuts to hi
statuscvo [17]

Answer:

8

Step-by-step explanation:

1/6 of 12 is 2

12 - 2 = 10

1/5 of 10 is also 2

10 - 2 = 8

Tommy took 8 donuts to work.

6 0
2 years ago
A new security system needs to be evaluated in the airport. The probability of a person being a security hazard is 4%. At the ch
ivolga24 [154]

Answer:

(a) 0.9412

(b) 0.9996 ≈ 1

Step-by-step explanation:

Denote the events a follows:

P = a person passes the security system

H = a person is a security hazard

Given:

P (H) = 0.04,\ P(P^{c}|H^{c})=0.02\ and\ P(P|H)=0.01

Then,

P(H^{c})=1-P(H)=1-0.04=0.96\\P(P|H^{c})=1-P(P|H)=1-0.02=0.98\\

(a)

Compute the probability that a person passes the security system using the total probability rule as follows:

The total probability rule states that: P(A)=P(A|B)P(B)+P(A|B^{c})P(B^{c})

The value of P (P) is:

P(P)=P(P|H)P(H)+P(P|H^{c})P(H^{c})\\=(0.01\times0.04)+(0.98\times0.96)\\=0.9412

Thus, the probability that a person passes the security system is 0.9412.

(b)

Compute the probability that a person who passes through the system is without any security problems as follows:

P(H^{c}|P)=\frac{P(P|H^{c})P(H^{c})}{P(P)} \\=\frac{0.98\times0.96}{0.9412} \\=0.9996\\\approx1

Thus, the probability that a person who passes through the system is without any security problems is approximately 1.

7 0
3 years ago
The graph below is used by company 2 to show the average monthly electric cost based on the electricity provider.
Simora [160]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
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What are the real or imaginary solutions of the polynomial equation?<br> x – 8=1 ?
vampirchik [111]

Answer:

I think the answer is going to be

x=9

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3 years ago
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