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Algebra

Suppose you wish to make a scale drawing of your living room, which measures 18 ft by 23 ft. If the shorter side of the drawing is 6 in., how long is the longer side of the scale drawing?

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  1. 6/18 = x/23

    Cross multiply and solve for x.

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    Ms. Sue
  2. Ms Sue, can you write it out, I'm really bad at this. Thanks.

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  3. 6/18 = x/23

    Cross multiply and solve for x.

    18x = 138

    x = 138/18

    x = ________ inches

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    Ms. Sue
  4. How many units of 10% solution are needed to prepare 500 units of a 2% solution?

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