A recipe needs 2 cups of flour for 12 cookies. How much flour for 30 cookies?

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Work through it one step at a time — the interactive walkthrough above shows exactly how each step is calculated, not just the final answer.

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This is a Word Problems question, solved here with a step-by-step visual explanation.

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The steps shown here are the same manual method a teacher would use at the board, so you can see how the answer is reached, not just what it is.

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Writing out each step makes it possible to check the working, catch mistakes early, and understand the method well enough to reuse it on a different question.