Solve the proportion

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A recipe for cookies calls for 4 eggs. The recipe makes 6 dozen cookies. how many eggs would be need to make 21 dozen cookies?

  • Solve the proportion -

    4 / 6 : x / 21

    Cross multiply.

    We'll be glad to check your answer.

  • Solve the proportion -

    63 eggs?

  • Solve the proportion -

    No, from the proportion, you should see that x will be less than 21, not more.

    4/6 : x/21 cross-multiplied ~~> 4*21=6x

    Now solve for x. Multiply 4*21 and then divide both sides by 6. What's the answer?

  • Solve the proportion -

    14 eggs!

  • Solve the proportion -

    Right! :-)

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