On a floor plan drawn at a scale of 1:100, the area of a rectangle room is 30 cm2. what is the actual area of the room? Ans
A.30,000 cm2
B. 300 m2
C. 3,000 m
D. 30 m2

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy