A room covers 299.6 square feet. A painter paints the room in three days. The first day he covers 2/7 of the area. The next day
he covers twice as much. How many square feet does he cover on the last day?
2 answers:
Answer:
128.4 feet
is the answer
Answer:
<em>On day the he covers </em>128.4 ft²
<u>Step-by-step explanation</u>:
Lets first figure out how much he has done so far
To figure out how much he does we can use a proportion
Set up a proportion for first day
2/7 = x/299.6
Solve the proportion
2×299.6÷7 = 599.2/7 = x
x = 85.6
<em>He covered 85.6 sq/ft on day 1</em>
Find day two
85.6 * 2 = 171.2
Find how much is left to do on day 3
299.6-171.2 = 128.4 ft²
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