Mathematics: You need 480 ml of a 50% alcohol solution. on hand, you have a 40% alcohol mixture. how much of the 40% alcohol mixture and pure alcohol will you need to obtain the desired solution? you will need ml of the 40% solution and ml of pure alcohol

You need 480 ml of a 50% alcohol solution. on

hollandhogenson

26.05.2020

Step-by-step explanation:

x+40%x=50%×480ml

x being 100% alcohol

14x=240ml

x=120/7 ml

x=17.(142857) ml

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dpazmembreno

17.11.2021

11.25 years

Step-by-step explanation:

Given data

P=3000

R= 5%

A=5200

simple interest formula is

A=P(1+r)^t

t = ln(A/P) / ln(1 + r)

t= ln(5200/3000)/ln(1+0.05)

t=ln(1.73)/ln(1.05)

t=0.54/0.048

t=11.25 years

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