Question

1) If 5x - 4y. then to find the value of the ratio 3x² + y2 complete
the activity
3x²
5x + 4y
(Given)
4
3 (Squaring both the sides)
-- . . . .
(Multiplying both sides by 3)
25
3x²+y2 48 + 25
(Using componendo-dividendo)
3x²-y?
3x² + y2 73
B
3x² - y²
=​

Answer 1

Step-by-step explanation:

Given:5x=4y

To find :3x² +y²/3x²-y² ___(eq1)

Solution :5x=4y

5x/4=y__(eq2)

Substitute eq(2) 'y' value in eq(1)

• 3x²+(5x/4)²/3x²-(5x/4)²
• 3x²+25x²/16/3x²-25x²/16
• 48x²+25x²/48x²-25x²
• 73x²/23x²
• 73/23

Ratio=73:23