Question

A pencil and ruler cost 1.50 together. The ruler is 1.00 more. How much is pencil

Answer 1

Pencil + Ruler = 1.50
Ruler is exactly 1.00 more so one of the items has to be 1.25
1.25 - 1.00 = 25
Ruler costs 1.25 ; Pencil costs 25

Answer 2

ok so the solution which greenrune will (hopefully) correct


total is 1.5
p+r=1.5
rule is 1 more than pencil
r=1+p
sub 1+p for r
p+1+p=1.5
2p+1=1.5
minus 1 from both sides
2p=0.5
divide both sides by 2
p=0.25

pencil=$0.25