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hoa [83]
3 years ago
6

7x + y = 13 4x – 4y = -20

Mathematics
2 answers:
aalyn [17]3 years ago
5 0

Answer: (x,y) = (1,6)

Step-by-step explanation:

xxMikexx [17]3 years ago
3 0
Solve by using substitution method: answer: (X , Y) = (1 , 6)
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The number of people who grow potatoes is 3 times the number that grow sugar beet.
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Solve for x :
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48 + x = 3( x + 12)
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x = 6

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Number of people who does not grow potato or sugar beets = 100 - 48 - 12 - 6 = 34

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Answer: The answers are 6 and 34.
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"6" is inbetween "48" and "12". 
"34" is outside the two circles.
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