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defon
3 years ago
10

Ivan and Tanya share £150 in the ratio of 4:1 how much more does ivan have than tanya

Mathematics
1 answer:
Grace [21]3 years ago
3 0
150. 1:4. 120:30. 120-30=90
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MatroZZZ [7]

The system of inequalities is:

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<h3>Which system of equations represents this situation?</h3>

Let's define the variables:

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The maximum time that you can spend on both activities is 8 hours, then:

v + h ≤ 8

You want to spend less than 2 hours on video games, so:

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h ≥ 1.5

Then the system of inequalities is:

v + h ≤ 8

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If you want to learn more about inequalities:

brainly.com/question/18881247

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Answer:

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Using Students' t - test

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The  90 % confidence  interval  for the mean population is (11.176  ; 20.824 )

Rounding to at least two decimal places would give 11.18 , 20.83

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