Mariah spent $9.50 on 9 pounds of limes and pears. Limes cost $0.50 per pound and pears cost $1.50 per pound. Let l be the number of pounds of limes and let p be the number of pounds of pears. Which system of linear equations models the scenario?
l + p = 9.5 and 1.5l + 0.5p = 9
l + p = 9 and 0.5l + 1.5p = 9.5
l = p + 9 and 9.5l + 0.5p = 0.5