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bija089 [108]
3 years ago
14

Solve 3 please be fast

Mathematics
2 answers:
shepuryov [24]3 years ago
6 0
3






hope this helps have a great day lol :)
Eduardwww [97]3 years ago
5 0

Answer:

3

Step-by-step explanation:

all you have to do is solve it:)

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Jane spent 2/5 of her money on games. She had $120 remaining. What was the cost of the games Jane bought?
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Answer:

i think it would be $80 (brainliest??)

Step-by-step explanation:

jane had a total of $200 BEFORE she spent on 2 games

1. $40

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4. $40

5.$40

2 games = $80

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Answer:

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7 0
3 years ago
Suppose that the mean systolic blood pressure for women over age seventy is 134 mmHg (millimeters of mercury), with a standard d
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Answer:

See below for answers (in bold) and explanations

Step-by-step explanation:

<u>Part A</u>

According to the Empirical Rule, 99.7% of the data in a normal distribution are ±3σ standard deviations away from the mean. Hence, approximately 99.7% of women over seventy have blood pressures between 134-3σ = 134-3(7) = 134-21 = 113 mmHg and 134+3σ = 134+3(7) = 134+21 = 155 mmHg.

<u>Part B</u>

As 141-134=134-127=7, this represents ±1σ standard deviations away from the mean of 134 mmHg, which corresponds to 68% of the data by the Empirical Rule. Hence, approximately 68% of women over seventy have blood pressures between 127 mmHg and 141 mmHg

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2 years ago
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