A vector X is added to vector Y = 12 i -16 j. The resultant vector lies along the positive x-axis and has the same magnitude as X. What is the magnitude of X? (Note: symbols in bold type are vectors).

On monday,mrs.wise bought 3 lbs of apples at $4per lb= 4*3=$12on tuesday ,20%off and she buy 5 lbs of apples = $4-20%=3.20*5lb=$16example: other wise when she buy 5lbs on monday she have to spend 4*5=20