William W. answered • 01/14/20
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Separate 846 into 3 parts so that the second part is twice the first part and the third part is triple the second part.
Let x be the first part. The the second part would be 2x (double x). And, since the third part is triple the second part and the second part is 2x, then the third part is 6x. So:
x + 2x + 6x = 846
9x = 846
x = 846/9
x = 94
The first part is 94
The second part is 188
The third part is 564
William W.
You certainly don’t have to go further than (2). I was just being complete. The student can match the explanation to the answer.
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01/14/20
David W.
Habits (d.g.., solving for x) are very difficult to break. Answer (2) 846 = x + 2x + 6x, separates 846 into three parts without "solving for x" and without checking the solution value of x. Why go further than selecting "(2)?"01/14/20