Sam is building a model of an antique car. the scale of his model to the actual car is 1: 10. his model is 181/2 inches long. how long is the actual car ?

Arectangular exercise mat has a perimeter of 36 feet the length of the mat is twich the width writeand solve an equation to determine the length in feet. of the mat then find the area in square feet of the mart

X+ y = 5 ; x - y =3 solve using linear combination

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?