Answered

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The product of 2 number is 162. If their sum is 27,what is their ratio?

Sagot :

Chenie8idn
let x be the first number and
     y be the second number

xy = 162
x+y = 27

x+y = 27
    y = 27 - x

so, xy = 162
     x( 27 - x) = 162 
     27x -x² = 162
     x² -27x+162 = 0
     (x-18) (x-9) = 0
      
      x-18 = 0       and      x-9 = 0
      x = 18          and      x = 9

if x = 18                  and     if x = 9
   y = 27 - x                          y = 27 - x
      = 27 - 18                           = 27 - 9
   y = 9                                 y = 18

so the answer or the ratio is 1 : 2 or 2 :1.
Dominiidn
[tex]Equation; \\ xy=162 \\ x+y=27 \\ \\ x+y=27 \\ \boxed{y=27-x}\ \underline{to\ give\ the\ value\ of\ y} \\ \\ Solution; \\ where\ y\to27-x \\ \\ xy=162 \\ x(27-x)=162 \\ x^{2}-27x+162=0 \\ (x-18)(x-9) \\ \\ \\ x-18=0 \\ \boxed{x=18} \\ \\ x-9=0 \\ \boxed{x=9}[/tex]

[tex]if\ x=18\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ if\ x=9 \\ \\ y=27-x\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ y=27-x \\ y=27-18\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ y=27-9 \\ \boxed{y=9}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \boxed{y=18} \\ \\ \boxed{\boxed{Ratio\ is\ 2:1\ or\ 1:2}} \\ \\ Hope\ it\ Helps:) \\ Domini[/tex]