ITS URGENT. THE SUM OF THE SQUARES OF THREE NUMBERS WHICH ARE IN RATIO 2:3:4 IS 725 . WHAT ARE THE NUMBERS?
Answers
Answered by
1
Answer:
10,15,20 or - 10,-15,-20
Step-by-step explanation:
Since the given number are in the ratio 2:3:4 they can be taken as 2x,3x and 4x respectively
Sum of their squares is 725
(2x) ^2+(3x)^2 +(4x)^2=725
4x^2 +9x^2+16x^2=725
29x^2=725
X^2 =725/29=25
x= +-5
So, three numbers are 10,15, 20 or - 10,-15 and -20
Answered by
0
Answer:
Numbers are 2k, 3k, and 4k for some positive constant k. Get the positive square root of both sides. So 2k = 10, 3k = 15, and 4k = 20.
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