six pencil and three rubber cost 1170naira. five pencil and two rubber cost 920naira. how much does each cost

Answer 1

6p+3r = 1170
5p+2r = 920
so now just crank it out

Answer 2

How

Answer 3

R=110
p=140
solving for the eqn
6p+3r=1170
5p+2r=920

Answer 4

6p+3r=1170
5p+2r=920
eliminate eqn 1 and 2
30p+12r=5520
30p+15r=5850
-3= -330
r=110
Equate r in eqn 1
6p+3r=1170
6p+3(110) =1170
6p+330=1170
6p=1170-330
p=840/6
p=140

Answer 5

Perfect

Answer 6

Not helpful

Answer 7

Thanks, it was helpful after a while of interpretation. Next time, try to explain more details about the solution.