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natima [27]
3 years ago
13

A number x increased by 9 is less than -30.

Mathematics
1 answer:
tatyana61 [14]3 years ago
8 0

Answer:

x + 9 - (-30)

Step-by-step explanation:

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sweet-ann [11.9K]

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2 years ago
Noah gathered data at his school among 7th and 8th graders to see if there was an association between grade level and handedness
mash [69]

Answer: 4) 157

Step-by-step explanation:

We know that there is no association between the grade level and the andedness, then we should find that the ratio between left handeds and right handed is the same for both grades.

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Right handed: 72

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Then the correct option is 4) 157

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