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20 results for "algebra"
Questions 20
If (a + b) : (a - b) = 15 : 1, then what is the ratio (a² + b²) : (a² - b²)?
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The sum of two numbers is 40 and their difference is 4. What is the ratio of the two numbers?
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Two numbers are in the ratio 4:7. If 10 is subtracted from each, the ratio becomes 1:2. Find the greater number.
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Find a third proportional to (x² - y²) and (x - y).
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If x:y = 3:4, what is the value of (4x + 5y) : (5x - 2y)?
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The third proportional to (a² - b²) and (a - b) is:
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If a : b = 2 : 3 and b : c = 4 : 5, then find a² : b² : bc.
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If a : b = 2 : 1, then the value of (a² - b²) : (a² + b²) is:
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If x/5 = y/8, then (x+5) : (y+8) is equal to:
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If a/b = 4/5 and b/c = 15/16, then (c²-a²) / (c²+a²) is:
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If X:Y = 5:4, what is the value of (X + Y) : Y?
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If a/2 = b/3 = c/4, then find A:B:C.
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If x : y = 3 : 4, then find (7x + 3y) : (7x - 3y).
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If x/5 = y/8, then (x + 5) : (y + 8) is equal to:
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If x : y = 2 : 1, then find the value of (x² - y²) : (x² + y²).
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If (a + b) : (a - b) = 15 : 1, then the value of (a² + b²) : (a² - b²) is:
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If (x + y) : (x - y) = 4 : 1, then (x² + y²) : (x² - y²) is:
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What is the third proportional to (x/y + y/x) and √(x² + y²)?
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The ratio of three numbers is 3 : 4 : 5 and the sum of their squares is 1,250. Find the numbers.
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If a : b = c : d, then (ma + nc) / (mb + nd) is equal to:
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