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Ugo [173]
4 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]4 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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Ilia_Sergeevich [38]

The trick with this problem is that there is no trick - there's no math involved at all, just wordplay. The key is in one-time deposit; what you're looking for isn't a recurring fee, but rather a constant. Now, an equation is made up of three things:

  • a variable
  • a relational statement in the form of =
  • a constant, even if it isn't really there, it's zero

In this case, what you're looking for is the constant in the equation; a value that doesn't change when any variable changes.

The only number in your question that fits the bill is 1200$, since it's a <em>one-time, unchanging value.</em> <em>y </em>is the total amount paid and x represents the months, which are both variables; 400 is tied to x, so it also changes based on months.

8 0
4 years ago
9/26 * 13/6 in the simplist form
Andrej [43]

Answer:

3/4.

Step-by-step explanation:

9 / 26 * 13/6     Note  9/6 = 3/2 so we have:

3 * 26 * 13/2

= 39 / 52

= 3/4.

6 0
4 years ago
Suppose you are conducting a survey regarding empathy among children in the Detroit school district. You obtain a cluster sample
stiv31 [10]

Answer:

B. Response Bias

explanation:

Response Bias occurs when the respondent inadequately or falsely respond to a question. This is very common when carrying out well structure questionnaire/survey or interviews. Respondents tends to give answers that are "socially acceptable" like what is expected of rather than what really is.

The response bias is also dependent on who is administering the survey. In this case, the survey is been administered by the parent to the respondent who are their children. The children may not want to give answers that are not in the "liking" of their parents or that are not accepted by their parents or may be hiding a few information that they don't want to tell their parents, so they end up giving false information.

6 0
3 years ago
Determine all zeros (x2+2x-8)
svlad2 [7]

Answer:

the answer is x= 2,-4

Step-by-step explanation:

zeros = 2, -4

3 0
3 years ago
Bret kicks a soccer ball straight up into the air worth an initial velocity of 25 m/s from a height of 1 m. After how many secon
grin007 [14]
The answer is B i think
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3 years ago
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