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choli [55]
3 years ago
7

Heeelllllppp meeeeeee

Mathematics
1 answer:
rusak2 [61]3 years ago
4 0

a. Solve the formula:

P = 2L + 2W

-2L = -P + 2W

ANSWER FOR A: L = (P/2) - W

b. Substitute the values:

L = (48/2) - 6

Simplify:

L = 24 - 6

L = 18

So the length is 18 feet.

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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.

Then, we can assume that the probability of unlocked homes is:

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

P(F ∪ (G∩S) =0.625

5 0
2 years ago
Mr Lowry paid $32 for 5 boxes of crayons. How many dollars per box?
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Answer:

6 dollars and 40 cents

Step-by-step explanation:

To get the answer, you would do 32/5 which equals 6.4, which is the same as saying 6 dollars and 40 cents.

5 0
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Sean bought 8 slurpees at $1.50 each and 6 popsicles. He gave the cashier $25.00 and received $4.00 change. How much did each Po
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Answer:

1.50

Step-by-step explanation:

8 x 1.50=12

25-12=13

13-4=9

9/6=1.5

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2 years ago
Simplify (4x) · mn · 15 · 2.
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I think it's 120xmn.
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