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2 years ago

Using the distributive property to transform 4(x +3) = 3(3x -1) how do I substitute 3 for x to see if it’s a true statement?

Mathematics

2 answers:

elena55 [62]2 years ago

8 0

Answer:

4(3+3)=3(3(3)-1)

Step-by-step explanation:

1) plug in the three

2) distribute

3) see if the answers gotten are the same if not than the statement is wrong

I know it looks a bit complicated but its not once you get the hang of it

Harrizon [31]2 years ago

7 0

4(x+3) = 3(3x-1)
4x + 12 = 9x - 3

x = 3
4(3) + 12 = 9(3) - 3
12 + 12 = 27 - 3
24 = 24 ✔️

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Answer:

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b) 28% probability that x lies between 6 and 13.

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Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value x between c and d, in which d is larger than c, is given by the following formula.

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$P(7 \leq x \leq 27) = \frac{27 - 7}{29 - 4} = 0.8$

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(b) Find the probability that x lies between 6 and 13. 

So $c = 6, d = 13$

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28% probability that x lies between 6 and 13.

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So $c = 9, d = 20$

$P(9 \leq x \leq 20) = \frac{20 - 9}{29 - 4} = 0.44$

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(d) Find the probability that x lies between 11 and 18.

So $c = 11, d = 18$

$P(11 \leq x \leq 18) = \frac{18 - 11}{29 - 4} = 0.28$

28% probability that x lies between 11 and 18.

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