Cody Petrulis: Let r be the number of red cars sold, and b the number of black cars sold.Not looking at prices yet, we know r + b = 44. Now with the prices, we can find the total money, and therefore 2r + 3b = 105. This is a system of equations. To find r, we substitute.b = 44 - r2r + 3(44-r) = 1052r + 132 - 3r = 105-r = -27r = 27 red cars sold....Show more
Asley Quickle: Trial and error17x3=5127x2=5454+51=105...Show more
Lawanna Livsey: Total sales: $2*numred+$3 numblack = $105Total cars: numred+ numblak = 44multiply cars by $2 then subtract that from total sales:black = 17multiply cars by $3 subtract total sales from that:red = 27...Show more
Avis Brantner: 2x+3y=105x+y=44 ---> y=44-x2x+3(44-x)=1052x+132-3x=1052x-3x=-27-x=-27x=2744-27=17y=17check:3(17)+2(27)=51+54=105...Show more
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