this is a math problem my child has can you answere it ?
2006-10-11 09:20:34 · 6 answers · asked by G'smom 1 in Science & Mathematics ➔ Mathematics
Let x and y be the numbers. Let x be the larger one.
Then
x+y=39
x-y=11
Add the equations together, and you get
2x=50
So x=25, and y=39-25=14.
2006-10-11 09:22:34 · answer #1 · answered by James L 5 · 0⤊ 0⤋
If a and b are the numbers then you can solve using simultaneous equations.
a+b=39 since the sum of the numbers is 39 and
a-b= 11 since the difference between the numbers is 11
If you add the 2 equations together you get 2a=50
which give a=25
Substituting a into the first equation gives 25+b=39
so b = 39-25 =14
we can check this by substituting both answers in the 2nd equation and 25-14=11 is true! Problem solved!
2006-10-11 16:25:59 · answer #2 · answered by Gina7 1 · 0⤊ 0⤋
x=25 y=14 because:
x+y = 39
x-y = 11
therefore 2x=50, x=25
and y = 14
2006-10-11 16:25:21 · answer #3 · answered by andyoptic 4 · 0⤊ 0⤋
x + y = 39 and
x - y =11
so 2x = 50
so x = 25 and y =14
2006-10-11 16:23:50 · answer #4 · answered by ? 7 · 0⤊ 0⤋
if the two numbers are x and y
x + y = 39
+ x - y = 11
__________
2x = 50
x = 25
25+y = 39
y = 14
the numbers are 25 and 14
2006-10-11 16:24:24 · answer #5 · answered by stop12345now 2 · 0⤊ 0⤋
14 of course
2006-10-11 16:31:25 · answer #6 · answered by ▲▼ßððĝiз▼▲ 4 · 0⤊ 0⤋