Question #88787

1 Answer
Nov 21, 2017

Apple = 0.4$
Orange = 0.6$

Explanation:

Let a=apple and let b= orange
=>
3a+4b=3.6
2a+5b=3.8
=>
6a+8b=7.2
6a+15b=11.4
=>
6a=-8b+7.2
6a=-15b+11.4
=>
-8b+7.2=-15b+11.4
=> 7b=4.2
=> b=0.6
=>
6a=-8*(0.6)+7.2 => 6a=2.4 => a=0.4
6a=-15*(0.6)+11.4 => 6a=2.4 => a=0.4

If we got the same "a", we were right! :-)