kxvy
kxvy
02-06-2017
Mathematics
contestada
I need helppp on this , I don't understand
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mreijepatmat
mreijepatmat
02-06-2017
Let x be the number of doors used in the one-story houses
And let y,be the number of doors used in the two-story houses
1) 3x +12y =117
2) 4x + 12y =124
Solve by substitution and you will find x = 7 and y =8 or
7 homes wit one story and 8 homes with 2 story
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Аноним
Аноним
02-06-2017
Ok the answer is 21 Xd
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