<PRE><B>Question 391249</B>
(1) {{{2m + 10r = 3.44}}}
(2) {{{3m + 8r = 3.69}}}
Multiply both sides of (1) by {{{3}}}
Multiply both sides of (2) by {{{2}}}
and subtract (2) from (1)
(1) {{{6m + 30r = 10.32}}}
(2) {{{-6m - 16r = -7.38}}}
{{{14r = 2.94}}}
{{{r = .21}}}
Substitute this in (1)
(1) {{{2m + 10*.21 = 3.44}}}
{{{2m + 2.1 = 3.44}}}
{{{2m = 1.34}}}
{{{m = .67}}}
1 liter of milk is 67 cents
1 orange is 21 cents</PRE>