An Orange Costs Whaaattttttt?????
Algebra
Level
2
4 oranges,3 apples and 2 papayas cost $15.50.2 oranges and 6 papayas cost $28.60.3 oranges and 4 apples cost $6.80.How much does an orange cost??
The answer is 0.80.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
Let the number of oranges=o,apples=a and papayas=p. 4o+3a+2p=$15.50 so.... 12o+9a+6p=$46.50(3*15.50). 2o+6p=28.60 so...... 10o+9a=17.90(46.50-28.60) and....
30o+27a=53.70(3 * 17.90) 3o+4a=6.80 so........30o+40a=$68(6.80*10)
(30o+40a)-(30o+27a)=13a=$14.30(68-53.70) 1a=$1.10(14.30/13) 3o+4a=$6.80 so..... 3o=$6.80-(4a*1.10) 3o=$2.40 1o=.80 Thus, the answer 0.80.