Junior Arithmetic

Junior Arithmetic

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which means that power is being used at the rate of 1000 watts per hour. For example, a 600-watt electric ... If she uses the iron 4^ hr. a week, how much, to the nearest cent, does the electricity cost per week ? 2. It costs Mrs. Modern 1.80 peranbsp;...

Title:Junior Arithmetic
Author:David Eugene Smith, Eva May Luse, Edward Longworth Morss
Publisher: - 1930


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