# Arithmetic

The Gardiner dam located 100 km south of Saskatoon is largest earth filled dam in the world. Upon it's opening in 1967, engineers discovered that the pressure from lake deifenbaker had moved the clay based structure 200 cm downstream. Since then, then the dam has been moving at rate of 2 cm per year. Determine the distance the dam will have moved downstream by the year 2020?

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1. Assuming that the dam had moved 200 cm by 2014 --

2014 - 1967 = 47 years

200 / 47 = 4.255 cm/year

(6 * 4.255) + 200 = ?

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Ms. Sue

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