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3 years ago

Need answers!! Will give 20 pts. !!

Mathematics

1 answer:

devlian [24]3 years ago

4 0

1. 64=8
2. 361=19
3. 471969=687
4. 0.0676=.26
5. .0025=0.5
6. 25/36=.83...

1. 438=20.92
2. 813=28.51
3. 958=30.95
4. 218.1529=14.77
5. .235=.48
6. 3.8809=1.97

1. positive numbers have 2 square roots, one positive & one negative

1.-268=16.3
2.-79=9(8.8...)
3.-0.102=.31

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Joey has a full 40 coins consisting of only quarters and nickels if the total value is $5.00 how many of each does joey have.

Archy [21]

Q + n = 40....q = 40 - n
0.25q + 0.05n = 5

0.25(40 - n) + 0.05n = 5
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3 years ago

Read 2 more answers

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3 years ago

A box contains 5 red balls, 6 white balls and 9 black balls. Two balls are drawn at

valina [46]

Answer:

$P(Same)=\frac{61}{190}$

Step-by-step explanation:

Given

$Red = 5$

$White = 6$

$Black = 9$

Required

The probability of selecting 2 same colors when the first is not replaced

The total number of ball is:

$Total = 5 + 6 + 9$

$Total = 20$

This is calculated as:

$P(Same)=P(Red\ and\ Red) + P(White\ and\ White) + P(Black\ and\ Black)$

So, we have:

$P(Same)=\frac{n(Red)}{Total} * \frac{n(Red) - 1}{Total - 1} + \frac{n(White)}{Total} * \frac{n(White) - 1}{Total - 1} + \frac{n(Black)}{Total} * \frac{n(Black) - 1}{Total - 1}$