0 votes
in Mathematics by (500 points)

4 Answers

0 votes
by (540 points)

first, we find the area of the floor in square meters.

9 m * 16 m = 144 m^2

now we convert the square meters to square feet.

144 m^2 * (1 ft)/(0.3048 m) * (1 ft)/(0.3048 ft) = 1550.0031 ft^2

now we find the area of a 4' by 8' sheet of plywood in square feet.

4 ft * 8 ft = 32 ft^2

now we divide the area of the floor by the area of a plywood sheet.

(1550.0031 ft^2)/(32 ft^2) = 48.44 sheets.

that means you need to buy 49 sheets.

0 votes
by (5.3k points)
[m(100cm/m)(in/2.54cm)(ft/12)]^2=(25/7.62)^2 ft^2

(9*16)m^2(25ft^2/7.62m^2)(sheets/(4*8)ft^2)≈48.44 sheets

in reality you must buy complete sheets, or integer values, so you would need 49 sheets to cover the floor : p


0 votes
by (59.5m points)
The answer would be A. 1 1/5

48/40 = 1 8/40

1 8/40 Simplify to 1 1/5

Hope this helps! 
0 votes
by (59.5m points)
I believe it is 60-10=x because it says she purchased it with 60$ but recieved 10$ in change causing the amount we dont know to be a variable such as "x"
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