SOLUTION: Sam needs to get carpet in two rooms of his house. Estimate the number of square feet(square footage) in the two rooms if one room measures 10 1/2 feet by 9 3/4 feet; and the other

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Question 176672This question is from textbook
: Sam needs to get carpet in two rooms of his house. Estimate the number of square feet(square footage) in the two rooms if one room measures 10 1/2 feet by 9 3/4 feet; and the other room measures 19 1/4 feet by 18 1/2 feet. This question is from textbook

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Estimate by rounding up measurements to the nearest whole number.
Remember if you round down you may not have enough carpet.
10 1/2 = 11
9 3/4 = 10
19 1/4 = 20
18 1/2 = 19
A%5B1%5D=11%2A10=110
A%5B2%5D=20%2A19=380
A%5Bt%5D=A%5B1%5D%2BA%5B2%5D=110%2B380=490
You need about 490 square feet of carpet.
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We can get the exact amount needed.
Change the measurements to pure fractions first.
10%2B1%2F2=20%2F2%2B1%2F2=21%2F2
9%2B3%2F4=36%2F4%2B3%2F4=39%2F4
19%2B1%2F4=76%2F4%2B1%2F4=77%2F4
18%2B1%2F2=36%2F2%2B1%2F2=37%2F2
Now you can calculate the square footage of each room.
A%5B1%5D=%2821%2F2%29%2A%2839%2F4%29=819%2F8
A%5B2%5D=%2877%2F4%29%2A%2837%2F2%29=2849%2F8
The total area is the sum of the two rooms,
A%5Bt%5D=A%5B1%5D%2BA%5B2%5D=819%2F8%2B2849%2F8=3668%2F8=917%2F2=458.5
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You estimated 490 sq.ft. while the exact fit is 458.5 sq. ft..
That's a good estimate.
Rule of thumb is to always order 10% more.