Problema Solution
A student needs at least seven hours of sleep each night. The student goes to bed at 11:00 pm and wakes up before 6:30 am. Is the student getting enough sleep? Write an inequality for the number of hours of sleep the student gets each night.
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let t = time of the sleep
t >= 7 is the inequality for the number of hours the student needs each night.
between 11:00 pm and 6:30 am there are 7 hours and 30 min or 7.5 hr > 7 thus the student is getting enough sleep.
inequality for the number of hours of sleep the student gets each night:
0<= t <= 7.5.