3 years ago

Write an equation then solve it

Mathematics

2 answers:

umka2103 [35]3 years ago

7 0

2x+54= 3x
x=54
teh answer is 54

s2008m [1.1K]3 years ago

5 0

34 + x = 38

Inverse operation must be applied.

34 + x = 38
-34 -34

x = 4

answer: x =4

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RoseWind [281]

9514 1404 393

Answer:

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Step-by-step explanation:

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(x, y) = (3, -1)

3 0

3 years ago

The prices of three t-shirts styles are $24, $30 and $36. the probability of choosing a $24 t-shirt is 1/6. the probability of c

Slav-nsk [51]

$\text{Answer} : \text{The expected value of a t-shirt is \$31.}$

Explanation:

Since we have given that

The prices of three t-shirts styles i.e $24, $30, $36 with their probability is given by

$\frac{1}{6}, \frac{1}{2},\frac{1}{3}$

As we know that,

$E(X)= \sum_{1}^{3}x_iP(x_i)$

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Now,

$x_1= \$24 , x_2=\$30 , x_3=$36$

and

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So,

$E(X)= 24\times \frac{1}{6}+30\times\frac{1}{2}+36\times \frac{1}{3}\\=4+15+12\\=31$

So, the expected value of a t-shirt = $31.

4 0

3 years ago

What is 4 divided by 6 + 89 - 34 -89 +190

saw5 [17]

4/(6+89-34-89+190)
=4/162
=2/81
That's your answer.

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