Mathematics, 18.10.2020 05:01, edjiejwi

Jared poured a small concrete area for the air conditioner. The concrete cannot be exposed to temperatures below 32°F for more than 2 hours in a row, or it will crack. Will the concrete be okay? How do you know? Chart:

Time: 11 p. m Temperature: (-9) (-5) - 4
Time: 12 p. m Temperature: 56 ÷ (-8) × (-5) - 1
Time: 1 a. m Temperature: 7 + (-4) (-8) + (-5)
Time: 2 a. m Temperature: (-48) ÷ 6 (-5) + (-7)
Time: 3 a. m Temperature: (-7) (4) a(-1) - (-1)
Time: 4 a. m Temperature: 29 - (-1) - (-2)
Time: 5 a. m Temperature: 2 + (-9) (-4) + (-6)
Time: 6 a. m Temperature: 72 ÷ (-8) (-4) + (-3)
Time: 7 a. m Temperature: (-6) (-7) + (-4)
Time: 8 a. m Temperature: (-64) ÷ (-8) (5) - (-5)

Answers: 3

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Jared poured a small concrete area for the air conditioner. The concrete cannot be exposed to temper...