Question 1173781
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Hi,
35% is same as 35/100
{{{ 35/100 = 28/x}}}
 Cross Multiply and solve for x
35x = 2800
  x = 2800/35 = 80yds is the total length of the material
Checking our Work:
 28/80 = .35  0r  35%  checks. 
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