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3 years ago

Simplify: (13x+4x) - (9x+3x)

Mathematics

1 answer:

shusha [124]3 years ago

6 0

Answer:

Step-by-step explanation:

13x + 4x - 9x - 3x

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A= a+b over 2 solving for the variable B

vovikov84 [41]

A=a+b/2

A×2=a+b/2×2

A2=a+b

A2-a=a+b-a

A2-a=b

5 0

3 years ago

Which of the following is the solution of One-fourth x + 5 = 7?

True [87]

Answer:

x/4 + 5 = 7

-5 -5

x/4 = 2

*4 *4

x=8

Step-by-step explanation:

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3 years ago

Box A contains 1 black and 3 white marbles, and box B contains 2 black and 4 white marbles. A box is selected at random, then a

Anna11 [10]

Answer: Probability that Box A was chosen given that black marble is chosen is 0.5.

Step-by-step explanation:

Since we have given that

Number of boxes = 2

In Box A,

Number of black marbles = 1

Number of white marbles = 3

In Box B,

Number of black marbles = 2

Number of white marbles = 4

Since black marble is selected.

So, using Bayes theorem , we get that

$P(E_1|B)}=\dfrac{P(E_1).P(B|E_1)}{P(E_1).P(B|E_1)+P(E_2).P(E_2|B)}\\\\P(E_1|B)=\dfrac{0.5\times \dfrac{1}{3}}{0.5\dfrac{1}{3}+0.5\times \dfrac{2}{6}}\\\\P(E_1|B)}=\dfrac{0.167}{0.167+0.167}\\\\P(E_1|B)}=0.5$

Hence, probability that Box A was chosen given that black marble is chosen is 0.5.

3 0

3 years ago

A parking garage charges a fixed amount of money for each hour that it is used.

insens350 [35]

Ok what is the rest of the question

5 0

2 years ago

How to write 5/9 + 5/9 as a mixed number

velikii [3]

Answer:

You add the numerators so 5 + 5 is 10. So its 10/9. We only added the numerators because the denominators were the same. So then 10/9 simplified by minusing 9 from ten because ten is the denominator the answer is:

1 1/9

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers