Question 88809
A+O=.30 THEN A=.30-O
3O=9A/2
3O=9(.30-O)/2
3O=(2.7-9O)/2
3O=(2.7-9O)/2
6O=2.7-9O
60+9O=2.7
15O=2.7
O=2.7/15
O=.18 FOR EACH ORANGE.
A=30-18
A=12.
PROOF
3*.18=9*.12/2
.54=1.08/2
.54=.54