+0  
 
+1
124
5
avatar+38 

If x and y are positive integers for which 3x + 2y + xy = 115, then what is x+y?

 Feb 18, 2023
 #1
avatar
0

In this case, the value of x + y is 23. This can be determined by rearranging the equation 3x + 2y + xy = 115 to solve for x + y:

x + y = (115 - 2y)/(3 + y).

Substituting the given values for x and y, we have x + y = (115 - 2(2))/(3 + 2) = 23. Therefore, the value of x + y is 23.

 Feb 18, 2023
 #2
avatar
0

x = 9 y= 8 9 + 8 = 17     17 is the answer

 Feb 18, 2023
 #3
avatar
0

x = 4, y = 12 ==> x + y = 16

Guest Feb 18, 2023
 #4
avatar
0

The answer is 22.

 Feb 18, 2023
 #5
avatar+185 
+1

Factor as (x+2)(y+3)-6=115, thus (x+2)(y+3)=11^2 so x+2=11 and y+3=11, so x=9 and y=8 so x+y=17.

 Feb 18, 2023

2 Online Users

avatar