The outside dimensions of a living room are 13' 0" x 22' 0". If the wall thickness is 5 1/8" , how many square feet of hardwood flooring are required for the living room floor? Allow 15% for waste A. 3,082 sq ft B. 295,35 sq ft C. 256.83 sq ft D. 3,432 sq ft

B. 295,35 sq ft

Step-by-step explanation:

We are told that the outside dimensions of a living room are 13' 0" x 22' 0".

Since the wall has a thickness of 5 1/8", then the internal dimensions are;

Length = 22' 0" - 5⅛" - 5⅛" = 21' 1¾"

Width = 13' 0" - 5⅛" - 5⅛" = 12' 1¾"

The floor area will be length × width.

So let's convert length and width to feet

Length = 21' 1¾" = 21.1458 ft

Width = 12' 1¾" = 12.1458 ft

Area of floor required = 21.1458 × 12.1458 = 256.83

Allowing 15% for waste gives us;

Area provided = 256.83 × 1.15 = 295.35 Sq.ft

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step-by-step explanation:

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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