Question

Sales of denim shorts and denim jeans for may totaled $1,955. the shorts sold for $15 each, and the jeans sold for $28 per pair. if 100 items were sold, how many of the shorts were sold

Answer 1

Number of shorts sold=xnumber of Jeans sold =y 100 items were sold x +y=100         eq 1x=100-y  The shorts sold for $15 each, and the jeans sold for $28 per pair.Sales of denim shorts and denim jeans for May totaled $1,955.  15x+28y=1955    eq 2

 substitute the value of x in second equation 15(100-y) +28y=1955 1500-15y+28y=1955 13y=455 y=35 x=100-35=65 Number of shorts sold=x=65
number of Jeans sold =y=35