If x : y = 3 : 4 and 2x + 5y = 598 , find x. A. 23 B. 26 C. 69 D. 78 E. 104

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jeew-m | College Teacher | (Level 1) Educator Emeritus

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`x:y = 3:4`

This means;

`x/y = 3/4`

`4x = 3y`

`y = (4x)/3`

`2x + 5y = 598`

`2x+5xx(4x)/3 = 598`

`2x+(20x)/3 = 598`

`26x = 598xx3`

`x = 69`

So the answer is x = 69. Correct answer is at option C.

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