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son4ous [18]
3 years ago
10

Lorraine and Bea are learning to type on a computer keyboard, Lorraine's

Mathematics
1 answer:
tamaranim1 [39]3 years ago
5 0

Answer:

A

Step-by-step explanation:

I took one for the team

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Oh no! Thomas is lost in the GGBL building after an exam, and trying to get out. Thereare four identical hallways leading away f
Brums [2.3K]

Answer:

Check the explanation

Step-by-step explanation:

Since each and every one of the 4 hallways is equally likely then

P(H1)=1/4P(H2)=1/2P(H3)=1/4

Now, if he chooses H1 he escapes after 12 minutes then

E(T|H1)=12

If he chooses H2 then he wastes 10 minutes and then he is again in the same starting

position so he expects to escape in E(T) minutes, then

E(T|H2)=10+E(T)

Analogously, if he chooses H3 then he wastes 40 minutes and then he is again in the same starting

position so he expects to escape in E(T) minutes, then

E(T|H3)=40+E(T)

Therefore

E(T) = E(T|H1)P(H1) + E(T|H2)P(H2) + E(T H3)P(H3) = (12) + (E(T) +10) + (E(T) + 40) = 3+ *E(T)+5+ 10 = E(T) +18 CON A'

So we have

E(T) = E(T) + 18 E(T) = 18 E(T) = 4(18) = 72

Therefore he is expected to escape in 72 minutes

7 0
3 years ago
How do you turn 37.5 into a fraction
larisa86 [58]
37 1/2. Since the decimal is in the tens place, the best, and easiest, denominator to use is 10, which results in 37 5/10 which then can be simplified into 37 1/2
3 0
3 years ago
Read 2 more answers
X X X X XX W X W (1 point) X X XX X X X X X X The fraction of the boxes with r's in them written as decimal number is​
kipiarov [429]

Answer:

your question doesnt make sense

Step-by-step explanation:

4 0
3 years ago
Describe another way you could slice the pyramid that would result in a different cross section
sleet_krkn [62]

Answer:

45 degree ange slice

Step-by-step explanation:

8 0
3 years ago
A water faucet leaked 3 2/6 liters of water every 3/5 of an hour. It leaked at a rate of how many liters per hour?
raketka [301]

Our water faucet leaked 3 2/6 liters of water every 3/5 of a hour. 
We are to find the rate in liter per hour at which the water faucet leaked. 


First, use the number of liters the water faucet leaked in 3/5 of a hour. 

This is 3 2/6 = 20/6

Therefore, the number of liters of water faucet leaked in 1 hour is

(20/6) / (3/5) 

Before we solve this, we should simplify,

20/6 can be simplified to 10/3

3/5 cannot be simplified

Then, we should modify our problem to use reciprocation instead of a complex fraction,

(10 • 5) / (3 • 3) 

This equals 50/9

Now, solve 50/9 for 5.555555555556

This rounds to 5.6

Thus, the required rate at which the water faucet leaked is 5.6 liters per hour.

4 0
1 year ago
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