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Dafna1 [17]
3 years ago
15

15m is what percent of 1.5km?

Mathematics
1 answer:
Papessa [141]3 years ago
3 0
1.5km = 1500m
To find the percentage take 15 and divide it by 1500, then times by 100
15/1500 x 100 = 1%
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A real estate agent has 8 master keys to open several new homes. Only 1 master key will open any given house. If 40% of these ho
riadik2000 [5.3K]

Answer:

Step-by-step explanation:

Suppose F represents the value that a room is unlocked.

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P(unlocked homes) = P(U)

P(unlocked homes) = 40%

P(unlocked homes) = 0.40

Also, let us represent the value of the locked room with G.

P(locked homes) = P(G)

P(locked homes) = (1 - 0.40)

P(locked homes) = 0.60

Let the probability of selecting a correct key be P(S)

It implies that for the agent to use 3 keys, we have a combination of ^8C_3 possible ways for the set of keys.

Now; since only one will open the house, then:

P(select correct key) = P(S)

P(S) = \dfrac{ (^1_1) (^7_2)   }{   ^8_3 }

P(S) = \dfrac{21}{56}

P(S) = 0.375

Finally, for the real estate agent to have access to specific homes supposing the agent select three master keys at random prior to the time he left his office, Then:

P(F ∪ (G∩S) = P(F) + P(G∩S)

P(F ∪ (G∩S) = P(F) + P(G) × P(S)

P(F ∪ (G∩S) = 0.40 + (0.60×0.375)

P(F ∪ (G∩S) = 0.40 + 0.225

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5 0
2 years ago
CAN SOMEONE PLEASE HELP ME!!
GaryK [48]

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Step-by-step explanation:

8 0
2 years ago
Round to the nearest 10th if necessary
Lana71 [14]

Answer:

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Step-by-step explanation:

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SO TO CA

H A H.

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°= Tan-1(0.8000)

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3 years ago
Help me please! Ray BD is the angle bisector.What is the value of x?
Montano1993 [528]

Answer:

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Step-by-step explanation:

An angle bisector divides an angle into two equal parts.  This means that you can set the two parts equal to each other and solve for x.

8x + 35 = 11x + 23

(8x + 35) - 35 = (11x + 23) - 35

8x = 11x - 12

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8 0
3 years ago
What is 2/3x-1/5x=x-1
Fed [463]

Answer:

= 15/8

Step-by-step explanation:

hope this helps!

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2 years ago
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