Let the width be x Since the question mentions the length is twice the width, let the length be 2x The total perimeter given is 25cm and as we know, perimeter for a rectangle : => P = 2(Length + width) So,
25cm = 2(2x + x) 25 = 4x + 2x 25 = 6x 25/6 = x 4.166666667 = x
Cost of airplane toy = $4.84 let x be the cost of the toy car cost of airplane toy is 4 times the cost of toy car; it means 4x = $4.84 x = 4.84 / 4 x = 1.21 Thus, the cost of toy car is $1.21.