3 years ago

What is 2.1 as a fraction?

Mathematics

1 answer:

german3 years ago

7 0

2 1/10 because the 1 in 2.1 is in the tenth place

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blsea [12.9K]

This is the correct answer is

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David decided to exercise more, so he started running for an hour each day which meant he ran seven hours a week. After eight we

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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,

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

$\text{where} x_i \text{ is the prices of t- shirts styles}$

Now,

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

and

$P(x_1)=\frac{1}{6},P(x_2)=\frac{1}{2}, P(x_3)=\frac{1}{3}$

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.

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4 years ago

Please help me I need it now

Arada [10]

Answer:

I'm pretty sure the answer is B

Step-by-step explanation:

sorry if I'm wrong

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3 years ago

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What is 2 2/3 4/5 and why?

liubo4ka [24]

Answer:

52 / 15 =3 7/15 ≈3.467

Step by step

2 2/3+4/5 =52/15 then you simplify 52/15 = 3 7/15

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3 years ago