Ask question

Ask question

All categories

3 years ago

7

A radioactive substance decays exponentially with a half-life of 500 years. After 1500 years, what percent of the radioactive ma

terial remains?

1 answer:

Talja [164]3 years ago

7 0

12.5%, every 500 years you take away half of the substance (50%) -> 25% -> 12.5%
you divide your number 3 times because 1500/500=3

You might be interested in

She completes the problem as seen in the steps below.

prisoha [69]

Answer:

• All her steps are right, and the answer is right as well

Step-by-step explanation:

$2(x + 1) + 1 = 5 \\ 2(x + 1) = 5 - 1 \\ 2(x + 1) = 4 \\ \\ \frac{2(x + 1)}{2} = \frac{4}{2} \\ \\ x + 1 = 2 \\ x = 2 - 1 \\ x = 1$

5 0

3 years ago

Read 2 more answers

If someone can explain to me step by step please

Nesterboy [21]

Answer:

1/36 will be ur ans__________

3 0

3 years ago

Read 2 more answers

If the total bear population was 2,008 Bears in May 2002 estimate the number of total bear counted in 2002 to complete the chart

Sergio039 [100]

The estimate of bears will be 2,008.

3 0

3 years ago

Layla is making pizza for a pizza party each pizza requires 1/8 pound of cheese how many pounds of cheese does she need to make

user100 [1]

10/80 pounds of cheese

1/8×10=10/80

6 0

3 years ago

The sales tax rate is

Simora [160]

The total cost would be $63.80

6 0

3 years ago