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# How much is three times a half life?

Updated: 9/22/2023

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Q: How much is three times a half life?
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### What is the meaning of three times as much?

Three times as much means that the quantity is tripled or multiplied by three. It represents a comparison where one quantity is three times larger than another.

### How much is one half of three eighths?

Three eighths is the same as six sixteenths - half of six sixteenths is three sixteenths

### After three half lives have passed how much of the original radioactive material will remaim?

After three half-lives, 12.5% of the original radioactive material will remain. Each half-life reduces the amount of material by half, so after three half-lives the remaining material will be 0.5^3 = 0.125 or 12.5%.

### How much is double the half of three fourths?

The double is negated by the half, so you are still left with the original three-fourths.

### A sample of a radioactive element has a mass of 80 g. How much parent and daughter materials are in the sample after two half-lives?

A half-life is the amount of time it takes for half of the material to decay. So if you started with 80g After 1 half-life you would have 40 g After 2 half-lives you would have 20 g After three half-lives you would have 10 g

### How much Cu-61 half-life about 3 hours would remain from a 2mg sample after 9 hours?

1/8th of a mg. You lose half every three hours.

### What is a word that starts with tr and means to make three times as much?

Triple means three times as much.

triple

### Why is the answer to 8 times two thirds exactly half of the answer to 8 times one third?

It's not half as much, it is twice as much. And it is twice as much, precisely because 2/3 is twice as much as 1/3.

Three times.

Three times.