contestada

I WILL GIVE YOU THE BRAINIEST PLEASE ANSWER NOW!!! How many gallons of a 50​% antifreeze solution must be mixed with 90 gallons of 25​% antifreeze to get a mixture that is 40​% ​antifreeze? Use the​ six-step method.

Respuesta :

Answer:

135 gallons

Step-by-step explanation:

gallons of a 50​% + 90 gallons of 25​%  =  mixture that is 40​%

         50x             +          25(90)            =         40(x + 90)

50x + 2250 = 40x + 3600

10x = 1350

x = 135

Otras preguntas