Question

A rectangular vegetable garden is 10 yards by 7 yards. what is the perimeter of the garden in feet?

Answer 1

Answer:  The perimeter of the garden is:  " 102 ft. " .
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Note: 
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        →  P = 2L + 2w ; 

                     in which:  "P = perimeter (for which we wish to solve)" ; 
                                      "L = length  = 10 yds. (given) " ; 
                                      "w = width   =  7 yds. (given)" .
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  Plug in the given values; and solve for the perimeter, "P" :

       →   P  =  2L + 2w ; 

                   =  2(10) + 2(7) ; 

                   =  20 + 14 ; 

                   =  34  yds. 
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The perimeter is:  34 yds.

Now, we are asked to convert this into: "feet (ft.)." .

Note the "exact conversion" :  "3 ft. = 1 yd."  ; 
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        →  34 yds.  *  $\frac{3 ft}{1 yd}$   =  (34 * 3) ft.  =  102 ft.
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Answer:  The perimeter of the garden is:  " 102 ft. " .
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Answer 2

34yds = 102ft

therefore; 1 yd = 3 ft

perimeter in ft( feet) is 102ft.