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14-07-2017
Mathematics

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three times the quantity of a number and 2.5 is 6.6. what is the number?

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choixongdong choixongdong

14-07-2017

3(x+2.5) = 6.6
3x + 7.5 = 6.6
3x = - 0.9
x = - 0.3

answer

- 0.3

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