megan's answer to Kuromi<3's Primary 4 Maths Singapore question.
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8+1.5x= 21.5
1.5x=13.5
x=9
therefore there were 9 1/2 hour periods.
longest time = 2hours + 9(1/2) = 6.5 hours
1.5x=13.5
x=9
therefore there were 9 1/2 hour periods.
longest time = 2hours + 9(1/2) = 6.5 hours
Date Posted:
3 years ago
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