Warp's Review-workbooks

Warp's Review-workbooks

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Mrs. Palmera#39;s washing machine uses 200 watts an hour. At 5 cents a kilowatt- hour, how much does it cost Mrs. Palmer to use the machine four hours? Answer:. .. .. . 7. Mrs. Palmera#39;s electric refrigerator uses 230 watts an hour. If the refrigerator anbsp;...

Title:Warp's Review-workbooks
Publisher: - 1941


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