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maks197457 [2]
3 years ago
7

Write a two-step equation that involves multiplication and subtraction, includes a negative coefficient , and has a solution of

x=7
Mathematics
1 answer:
Allisa [31]3 years ago
3 0

Answer:

-60x+20 = -400

x equals 7

Step-by-step explanation:

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6(3x + 3) - 3(4x - 2)<br> -<br> Please help expand and simplify
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Answer:

The answer is 3(2x + 3)

Step-by-step explanation:

6(3x + 3) - 3(4x – 2)

Multiply (3x + 3) by 6 and (4x – 2) by (-3) we get,

6 (3x + 3) = 18x + 3

(-3) (4x – 2) = -12x + 6

Now, Simply

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Suppose that in a casino game the payout is a random variable X . If X is positive, you gain money, if negative, you lose.
Vanyuwa [196]

Answer:

the conditional probability that X = 1 , X = 2 and X = 3 is  0.7333 (73.33%) , 0.25 (25%) and 0.0167 (1.67%) respectively

Step-by-step explanation:

a player wins money when i>0 then defining event W= gain money , then

P(W) = p(i>0) = p(1)+p(2)+p(3)

then the conditional probability can be calculated through the theorem of Bayes

P(X=1/W)= P(X=1 ∩ W)/P(W)

where

P(X=1 ∩ W)= probability that the payout is 1 and earns money

P(X=1 / W)= probability that the payout is 1 given money was earned

then

P(X=1/W)= P(X=1 ∩ W)/P(W) = P(X=1) / P(W) = p(1) /[p(1)+p(2)+p(3)] = 11/40 /(11/40+3/32+1/160 ) = 0.7333 (73.33%)

similarly

P(X=2/W)=p(2) /[p(1)+p(2)+p(3)] = 3/32 /(11/40+3/32+1/160 ) = 0.25 (25%)

P(X=3/W)=p(2) /[p(1)+p(2)+p(3)] = 1/160 /(11/40+3/32+1/160 ) = 0.0167 (1.67%)

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3 years ago
A cardboard box has a square base, with each of the four edges on the base having length x inches. The total length of all 12 ed
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If the doctor's office is 7 units from the zoo and 2 units from the park, which ordered pair could represent the location of
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Answer: (-4,-2)

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Looking at the graph, if you move from the zoo downwards for 7 units, you will arrive at point B which is also 2 units from the park.

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