Question

Solve each problem with solution and answer:

To make a mixture that is not less than 95% alcohol, how much pure alcohol must be added to 40 liters of a mixture of 85% alcohol?

Help:(((

Answer 1

Answer:

HAPPY NEW YEAR FRND

Answer 2

Answer:

We have 40 liter of 85% solution

We want to add some 100% solution to make 95% solution

1*x+0.85*40=0.95(40+x)

1*x+34=38+0.95x

1x-0.95x=38-34

0.05x=4

x=80 liter at 100% (80) is added to 40 liter at 85%(34) to make 95% of 120 liter(114)

check

1*80+0.85*40=0.95(40+80)

80+34=0.95(120)

114=114

hopefully it will help