SOLUTION: Five oranges and an apple cost php87 , five apples and one orange cost php 99 . How much do 2 oranges and 2 apples cost?
Algebra ->
Finance
-> SOLUTION: Five oranges and an apple cost php87 , five apples and one orange cost php 99 . How much do 2 oranges and 2 apples cost?
Log On
Question 1005402: Five oranges and an apple cost php87 , five apples and one orange cost php 99 . How much do 2 oranges and 2 apples cost? Answer by macston(5194) (Show Source):
You can put this solution on YOUR website! .
X=cost of orange; Y=cost of apple
.
5X+Y=php87
Y=php87-5X
.
X+5Y=php99
X+5(php87-5X)=php99
X+php435-25X=php99
-24X=-php336
X=php14 One orange costs php14
.
Y=php87-5X
Y=php87-5(php14)
Y=php87-php70
Y=php17 One apple costs php17
.
C=Cost of 2 apples and 2 oranges
C=2X+2Y
C=2(php14)+2(17php)
C=php28+php34
C=php62
ANSWER: Two apples and two oranges cost php62.
