Jackie bought a used computer and some software; together,
they cost $1200. The software was 1/4 of the cost of the computer.
How much did Jackie pay for the computer?
Let S=cost of software 4S=cost of computer Total cost = $1200 => S+4S=1200 solve for S 5S=1200 S=240 (= cost of software) Cost of computer = 4*240 = $960
