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Rom4ik [11]
3 years ago
8

Of five letters (a, b, c, d, and e), two letters are to be selected at random. how many possible selections are there

Mathematics
1 answer:
Margaret [11]3 years ago
5 0
You can use C(5,2) which is 5*4/2 which makes 10!
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The variables y and x have a proportional relationship, and y = 5 when x = 4. What is the value of x when y = 8? Enter your answ
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Answer

Find out the what is the value of x when y = 8 .

To prove

As given

The variables y and x have a proportional relationship.

y \propto x

y = kx

Where k is the constant of proportionality.

As y = 5 when x = 4

Put in the above

5 = 4k

k = \frac{5}{4}

Now find out the value of x , when y = 8

8 = \frac{5\times x}{4}

x = \frac{8\times 4}{5}

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