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29-09-2017
Mathematics

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part of the river she observed fell 1.68 millimeters per year for 1.5 years. Use the distributive property to calculate the exact variation in water level for the time period.

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altavistard altavistard

29-09-2017

1.68 mm per year for 1.5 years could be rewritten as
(2.00-0.32) mm per year for 1.5 yrs.

Multiply: (1.5 yrs)(2.00-0.32)(mm/yr) = 3 mm + 0.48 mm = 3.48 mm

This approach makes use of the distributive property of multiplication.

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