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nekit [7.7K]
3 years ago
9

Does 10p/2q = 5p/q I don't think so but it doesn't seem right.

Mathematics
2 answers:
Georgia [21]3 years ago
6 0
They are unequal because it’s a 2/1 ratio 10p can not equal 5p
Vladimir [108]3 years ago
4 0
Yes it does equal since they are equivalent!
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Find the coordinates of the midpoint of AB if A(-2,3) B (3,-2)
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Timothy is trying to solve the following equation for his math homework.
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18t=4

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3. What is the estimated probability that teens spend less than an hour per day texting?
DaniilM [7]

Answer:

0.29

Missing Problem Statement:

The table shows the number of hours, to the nearest half hour per day, that teens spend texting according to a random  

sample of 870 teenagers aged 13–18 in a large urban city.  

Hours          0     0.5    1.0   1.5  2.0   2.5  3.0  3.5  4.0  4.5  5.0

Frequency  170  82    220  153  92   58   40    15  12   18    10

Step by Step Explanation:

First we need to find the estimated probability distribution for teens spending time texting.

For that we need,

Total sample size = 870 teenagers (as given in the problem statement)

Estimated probability distribution (Frequency*) = \frac{Frequency.Sample.Size.of.that.hour}{Total.Sample.Size}

Example:

Estimated probability distribution that teens spend 0 hours=\frac{170}{870} =0.20

Similarly,

Hours          0     0.5    1.0     1.5    2.0    2.5    3.0    3.5    4.0    4.5    5.0

Frequency*0.2  0.09  0.25  0.18  0.11  0.07  0.05  0.02  0.01  0.02  0.01

We need, estimated probability distribution that teens spend less than an hour per day, so from the above result:

<u>Estimated probability distribution of teens spending 0 hour per day =0.2 </u>

<u>Estimated probability distribution of teens spending 0.5 hour per day = 0.09 </u>

Estimated probability distribution of teens spending less than an hour per day= 0.2+0.09=0.29

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And so the music is really cheap!

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(60/30)(x^20/x^10)(y^24/y^12)
(2)(x^10)(y^12)
2x^10y^12
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