SOLUTION: Question 18 Two apples and one orange together cost 72 cent. One apple and two oranges together costs 63 cent. How much does one orange cost? Enter your answer as a whole number,

Algebra.Com
Question 905919: Question 18
Two apples and one orange together cost 72 cent. One apple and two oranges together costs 63 cent. How much does one orange cost? Enter your answer as a whole number, i.e. no € symbol.


Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
One question at a time please!
Two apples and one orange together cost 72 cent. One apple and two oranges together costs 63 cent. How much does one orange cost? Enter your answer as a whole number, i.e. no € symbol.
2a+1o=72
1a+2o=63
multiply #2 by 2
2a+4o=126
multiply #1 by -1
2a+4o=126
-2a-1o=-72
add
3o=54
o=18
One orange costs 18 cents


RELATED QUESTIONS

Two apples and one orange together cost 72 cent. One apple and two oranges together costs (answered by artemia ,richwmiller)
if 7 apples and 2 oranges costs 114 while 6 apples and 4 oranges cost 132, how much does... (answered by josgarithmetic,lwsshak3)
Five oranges and an apple cost php87 , five apples and one orange cost php 99 . How much... (answered by macston)
5 oranges and 2 apples cost 61 pesos ; one orange and 4 apples cost 41 pesos . How much... (answered by mananth)
An apple costs the same as 2 oranges. Together, an orange and a banana cost $.10 more... (answered by josmiceli)
An apple costs the same as 2oranges. Together, an orange and a banana cost .10 more than... (answered by ankor@dixie-net.com,oberobic)
Three oranges cost half of what nine apples cost. If one orange and one apple together... (answered by checkley75,lammy60)
An apple costs the same as two oranges. Together an orange and a banana costs 10 cents... (answered by JulietG)
"Seven apples and one orange cost ninety eight cents. Two apples and three oranges cost... (answered by fractalier)