Problema Solution
Dolores bought some new pillows she bought twice as many green pillows as blue pillows and one less red pillow then green pillows she bought a total of nine pillows how many pills of each color did she buy
Answer provided by our tutors
Assuming the pillows come in three colors: blue, green and red, we have:
Number of blue pillows = x
Number of green pillows = y
Number of red pillows: z
y = 2x
z = y - 1
x + y + z = 9
........
click here to see the system of equations solved for x, y and z
........
x = 2 blue pillows
y = 4 green pillows
z = 3 red pillows
Dolores bought two blue, four green and three red pillows.