All categories

2 years ago

A radioactive material has a half life of 10 years. What is the fraction of the initial isotope is left after 60 years

Mathematics

1 answer:

jeka57 [31]2 years ago

3 0

Answer:

1/2^6 = 1/64

Step-by-step explanation:

Half life = 10 years

Time = 60 years

No of half life = T/t

= 60 / 10 = 6

Remaining fraction = 1/2^(no of half life)

= 1/2^6

= 1/64

You might be interested in

What is 144/36 simplified?

NARA [144]

144/36 in lowest terms is 4.

To show my work, here.

1. Find the GCF of 144 and 36 so now we divide (144/36 = 4 and 36/36 is 1)

2. Now we have 4/1 so we simplify again so divide 4/1 and its 4

7 0

3 years ago

I need someone to talk to

Cloud [144]

Answer:

Same people are loney

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A grocery store recieves a 180-pound crate containing six 10-pound bags of potatos and an unknown number of 5-pound bags of pota

Diano4ka-milaya [45]

Answer:

$60+5x = 180$

Step-by-step explanation:

Let the number of bags of potatoes be x.

We have been given that a grocery store receives a 180-pound crate containing six 10-pound bags of potatoes and an unknown number of 5-pound bags of potatoes.

The weight of 6 potato bags of 10 pound each will be $6\times 10=60$ pounds.

We can write an equation for the number of bags of potatoes by equating the weight of six 10-pound bags of potatoes and x 5-pound bags of potatoes with 180 pounds.

$6*10+5x = 180$

$60+5x = 180$

Therefore, the equation that represents the number of bags of potatoes in the crate is $60+5x = 180$ .

5 0

3 years ago

This counts as algebra... <br> tell me what movie this is from please!!

tia_tia [17]

The movie that this comes from is Twin Peaks

4 0

3 years ago

1.5%+(.5P) : P=# of people in squad

aleksley [76]

The problem has missing information. But, i'll try to answer it.

1.5% should be converted into a decimal number before it can be added to 0.50P.

1.5% / 100% = 0.015

0.015 + 0.5P = 0

0.5P = -0.015
0.5P / 0.5 = -0.015/0.5
P = -0.03

To check:

0.015 + 0.5(-0.03) = 0
0.015 - 0.015 = 0
0 = 0

Since no information about the number of people in the squad is given, let us assume that the squad is composed of 30 people, So, P = 30

0.015 + (0.5*30) = 0.015 + 15 = 15.015

5 0

3 years ago