Question

Grace and Jim each bought notebooks for school. Grace bought 4 notebooks for $4.80. Jim bought 3 notebooks for $3.90. Find the unit cost for each student’s notebooks. Then, determine which student found the better buy.

Answer 1

grace: 4x=4.80, x=1.2, $1.20 per notebook (unit price)
jim: 3x=3.90, x=1.3, $1.30 per notebook (unit price)
grace found buy with less money per notebook and thus found better buy