If denise has 3000 water bottles and gave 4x345 away, how many would she have left?

4x345=1380

3000-1380=1621

Answer= Denise would have 1,621 water bottles left

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since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.