Mathematics, 30.07.2019 09:40 clemsongirl5392
Mrs. henderson has 60 pens and pencils in her desk. she knows that she has twice as many pencils as pens. she writes the expression 2x + x for the total number of pens and pencils, where x is the number of pens. which number in the set {15, 20, 25, 30} makes this expression equal to 60?
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Mrs. henderson has 60 pens and pencils in her desk. she knows that she has twice as many pencils as...
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