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10 June, 19:26

Amanda wants to paint the walls of a room. she knows that each can of paint contains one gallon. a half gallon will cover a 55 square feet of wall. each of the four walls is 10 feet high. two of the walls are 10 feet wide and two of the walls are 15 feet wide. how many 1-gallon buckets of paint does amanda need to buy in order to fully paint the room?

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  1. 10 June, 20:25
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    1st type of wall - a

    2nd type - b

    a = 10*10 = 100ft²

    b = 15*10 = 150ft²

    The total area is 2a + 2b

    2*100 + 2*150 = 500ft²

    500/110 = 4.55

    The answer needs to be a whole number and she needs to have enough paint so the answer is 5 buckets
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