Part a) julio makes a scale drawing of the kitchen floor to determine how many square feet of flooring he needs to buy . the scale of his drawing is 1 inch: 4 feet. (the length is 4 1/2 and the width is 3 3/8) what is the actual are of julio's kitchen floor? part b) julio makes a scale drawing of part of the kitchen wall to design a tile pattern. he will use gray tiles and white tiles to form the pattern shown. the length of each square in the drawing represents 1/2 foot on the actual kitchen wall. (there are 14 gray tiles and 10 white tiles) if julio uses 2-inch by 2-inch tiles, how many tiles of each color will he need?

Part A) 
we know that
scale >  inch/4 feet=0.25 in/ft

[scale]=[scale drawing]/[actual]
[actual]=[scale drawing]/[scale]

for length > 4 1/2 in > 4.5 in  (scale drawing)
[actual]=[4.5]/[0.25]=18 ft

for width > 3 3/8 in ---> (3*8+3)/8 ---> 27/8 in  (scale drawing)
[actual]=[27/8]/[0.25]=13.5 ft

the answer part A is
length actual kitchen floor is 18 ft
width actual kitchen floor is 13.5 ft

Part B)  
the area of one square in the actual=(1/2)*(1/2)=0.25 ft²
total area gray tiles=0.25*14=3.5 ft²
total area white tiles=0.25*10=2.5 ft²

find how many tiles 2 in by 2 in of each color will he need
1ft²> 144 in²
gray tiles
3.5 ft²> 3.5*144=504 in²
[tiles 2 in by 2 in gray]=504/(2*2)=126 gray tiles 

white tiles
2.5 ft²> 2.5*144=360 in²
[tiles 2 in by 2 in white]=360/(2*2)=90 white tiles 

the answer Part B) is
126 gray tiles
90 white tiles 

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