Gabe amodeo, a nuclear physicist, needs 60 liters of a 60% acid solution. he currently has a 50% solution and a 70% solution. how many liters of each does he need to make the needed 60 liters of 60% acid solution? gabe needs 30 liters for a 50% solution . he also needs a for a 70% solution . whats

Gabe needs 20 liters of the 40% solution.  

He also needs 40 liters of the 70% solution.

Step-by-step explanation:

Equation:

acid + acid = acid

0.40x + 0.70(60-x) = 0.60*60

40x + 70*60 - 70x = 60*60

-30x = -10*60

x = 20 liters

Gabe needs 20 liters of the 40% solution.  

He also needs 40 liters of the 70% solution.

the answer is. -82562234434584

step-by-step explanation:

y < -3

step-by-step explanation:

-3y - 2 > 7

-3y -2 + 2 > 7+2

-3y > 9

-3y/-3 < 9/-3   (change the inequality sign when multiplying or dividing by a negative number)

y < -3