SOLUTION: Sum of two students is 24, the difference between ages is 8. If James is older then Andy, determine their ages using simultaneous equations.
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Question 1026271: Sum of two students is 24, the difference between ages is 8. If James is older then Andy, determine their ages using simultaneous equations. Answer by Cromlix(4381) (Show Source):
You can put this solution on YOUR website! Hi there,
Sum of two students is 24
x + y = 24......(1)
the difference between ages is 8.
x - y = 8.......(2)
Simultaneous Equations:
x + y = 24........(1)
x - y = 8.........(2)
Add Eq(1) + Eq(2)
2x = 32
x = 16
Substitute x = 16 into Eq(1)
x + y = 24
16 + y = 24
y = 24 - 16
y = 8
James is 16 years old
Andy is 8 years old.
Hope this helps :-)
