Respuesta :

mathstudent55

Answer:

Red paint: 12.5 gallons

Blue paint: 7.5 gallons

Step-by-step explanation:

5 + 3 = 8

20/8 = 2.5

5 * 2.5 = 12.5

3 * 2.5 = 7.5

Red paint: 12.5 gallons

Blue paint: 7.5 gallons

tramserran

Answer: Red = 12.5 gallons, Blue = 7.5 gallons

Step-by-step explanation:

Red  :   Blue    = Purple

 5x   +    3x      =    20

        8x            =    20

      ÷8                   ÷8    

x = [tex]\frac{20}{8}[/tex] = [tex]\frac{5}{2}[/tex]


Red: 5x = 5[tex](\frac{5}{2})[/tex] = [tex]\frac{25}{2}[/tex] = 12.5

Blue: 3x = 3[tex](\frac{5}{2})[/tex] = [tex]\frac{15}{2}[/tex] = 7.5