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DENIUS [597]
3 years ago
15

The graph shows that Chelsea can type 175 words in minutes.

Mathematics
2 answers:
jasenka [17]3 years ago
3 0
In this graph, we see Chelsea types 50 words per minutes.
To find the answer, I will use tree diagram:
50 words in 1 minute
175 words in ?minutes
Step 1:
Cross multiply
175×1=175
Step 2:
Use division
175÷50=3.5 or 3 1/2 minutes. As a result, Chelsea types 175 words in 3.5 minutes or 3 1/2 minutes. Hope it help!
Aliun [14]3 years ago
3 0
As shown by the graph's first plot, Chelsea can type 50 words in one minute. With this information, it is a simple proportion:
1 X
---- = ------
50 175

Just solve 175/50 and that is your answer for minutes.








Answer:
175 / 50 = 3.5
Answer: she can type 175 words in 3 and a half minutes.
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5 0
3 years ago
Express your answer as a polynomial in standard form.
olganol [36]

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= 9 - 7x

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3 0
3 years ago
Which of the following inequalities matches the graph. x>-3 x<-3 y>-3 y<-3
kvv77 [185]

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4 0
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

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Black = 9

Required

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Total = 5 + 6 + 9

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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}

<em>Note that: 1 is subtracted because it is a probability without replacement</em>

P(Same)=\frac{5}{20} * \frac{5 - 1}{20- 1} + \frac{6}{20} * \frac{6 - 1}{20- 1}  + \frac{9}{20} * \frac{9- 1}{20- 1}

P(Same)=\frac{5}{20} * \frac{4}{19} + \frac{6}{20} * \frac{5}{19}  + \frac{9}{20} * \frac{8}{19}

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P(Same)=\frac{122}{380}

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4 0
3 years ago
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