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Ugo [173]
3 years ago
9

A reporter determines a baseball player’s batting average, which is a ratio of the number of hits to number of times at bat. The

result is shown on a calculator as 0.212121....Write this repeating decimal as a fraction.
Mathematics
1 answer:
Tpy6a [65]3 years ago
6 0

Answer:

21/99 or 7/33

Step-by-step explanation:

x = 0.212121

Then we multiple the decimal and x by hundred.

100x = 21.212121

Then we subtract the 21.212121 by 0.212121.

100x = 21.212121 - 0.212121

But when you are subtracting 100x, you need to subtract 100x by x because in the first step it said x = 0.212121.

100x - x = 21.212121 - 0.212121

You will have at the end is

99x = 21

Divide 99 on both side and you left with

21/99 or 7/33 simplified version

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elixir [45]

Volume of a triangle is 1/2 base x height x length.

Using the given information we can find t:

247.5 = 1/2(5)(t)(11)

Simplify:

247.5 = 2.5(t)(11)

247.5 = 27.5t

Divide both sides by 27.5:

t = 247.5 / 27.5

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3 years ago
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2 years ago
5.28 A manufacturer knows that on average 20% of the electric toasters produced require repairs within 1 year after they are sol
ahrayia [7]

Answer:

A) probability that at least x of them will require repairs is less than 0.5 is 4

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