You need a 25% alcohol solution. On hand, you have a 180 mL of a 20% alcohol mixture. You also have 45% alcohol mixture. How much of the 45% mixture will you need to add to obtain the desired solution?

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.632

step-by-step explanation:

6 * 1/10 = 3/5

3*0.01 = 0.03

3/5 + 0.03 = .63

2*0.002 = .002

.63 + 0.002 = .632

a long term investor

step-by-step explanation:

because he is a long term investor