Samuel helps his brother paint walls during his summer vacation. he charges $10 for the first room and $5 for each addition room (x) he paints. which equation could samuel use to find out many rooms he would have to paint to make $50 at one house?
Here's the inequality for the painting of a house: 5x + 10 Basically to find the rooms he has to paint we use this equation: 5x + 10 = 50 (Remember that 10 still represents a room) Isolate x: 5x = 40 x = 8 8 + 1 = 9 He will have to paint 9 rooms
