Assume that the missing number=xThen,15/x=17/510ex0exx=15× 51/170ex0exx=45Hence, 15:45 = 17:51 ...

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Solving a Quadratic Equation by Factorization Method

15: = 17:51

Question

$15 :___= 17 : 51$

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Solution

Assume that the missing number $= x$
Then,
$\frac{15}{x} = \frac{17}{51} x = \frac{15 \times 51}{17} x = 45$
Hence, $15 : 45 = 17 : 51$

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Sum of three consecutive integers is 51. The middle one is

(a) 14

(b) 15

(d) 17

$\frac{- 15}{51}$ is a multiplicative inverse of $\frac{- 17}{5}$ .

The number $15$ has to _____ the same ratio that $17$ has to $51$ .

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