Alex was thinking of a number. Alex doubles it the adds 20 to get answer of 22.7. What was his original number.
1 answer:
Answer:
2.7
Step-by-step explanation:
Let the number alex think be x
Answer = 22.7
According to the question,
x + 20 = 22.7
x = 22.7 - 20
x = 2.7
Therefore, his original number is 2.7
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10 feet is bigger than 3 yards I think not so positive
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X + y = 25
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y is the smaller number plus 9 (x + 9).
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2x + 9 = 25
2x = 16
x = 8
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1st angle = 3x
2nd angle = x
3rd angle = 65 +x
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x = 115/5 = 23
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Answer:
y = -4
Step-by-step explanation:
y = -x-3
Let x= 1
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