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Nataliya [291]
3 years ago
5

Anna painted 1/6 of a wall, Eric painted 1/5 of the wall, and Meadow painted 1/4 of the wall. There are now 3,910 square feet le

ft to paint. How many square feet did Anna paint?
Mathematics
2 answers:
Alenkasestr [34]3 years ago
3 0

Answer:

6 feet

Step-by-step explanation:

enot [183]3 years ago
3 0

Answer:

Step-by-step explanation:

remaining wall=x-(x/6+ x/5+x/4)

(L.C.M. of 6,5,4=60)

=x-\frac{(10+12+15)x}{60} \\=\frac{60x-37x}{60}=\frac{23x}{60} \\Now ~\frac{23x}{60}=3910\\x=3910*\frac{60}{23} =170*60=10200\\they painted=10,200-3910=6290~sq~ft

Anna~painted=10200*\frac{1}{6}=1700~sq~ft.

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Here's a method that takes advantage of the values of these particular numbers.

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More conventionally, you would multiply every digit of one number by every digit of the other and add the products according to their respective place values.

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Note the pattern of partial products here. This is a method taught to/by practitioners of Vedic mathematics, and can be done in your head. At most, you would write down the partial product sums 21, 32, 61, and 42 to keep from having to carry more than one number in your head at a time.

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