1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
slava [35]
3 years ago
12

URGENT will give brainliest!!! Element X decays radioactively with a half life of 5 minutes. If there are 540 grams of Element X

, how long, to the nearest tenth of a minute, would it take the element to decay to 252 grams?
Mathematics
1 answer:
yKpoI14uk [10]3 years ago
7 0

Answer:

7.2 minutes

Step-by-step explanation:

The formula to find the time using the radioactive decay rate formula is given as:

t = t½ × In(Nt/No)/-In2

Where

t½ = half life = 6 minutes

No = Initial Amount = 260 grams

Nt = Amount after decay

= 113 grams

Hence:

t = 6 × In(113/260)/-In2

t = 7.2131331036796 minutes

Approximately = 7.2 minutes

You might be interested in
Find the slope of the given points(3,4) and (7,-4)( All the fractions will be written as 1/2,1/4 etc.)
ryzh [129]
The slope of these coordinates is -2

3 0
3 years ago
Use the bar graph. Astronauts installed 15 new tiles on the outside of the space station they spent 390 minutes on the task. eac
11111nata11111 [884]

Answer:

11. It will take about 26 minutes to install a singular tile.

12. It will take about 10 more minutes to install a light than it does to install a cable.

Step-by-step explanation:

11. Since installing 15 new tiles took a total of 390 minutes and each tile took the same amount of time, you can divide the total amount of time by the number of tiles.

390/15= 26 minutes

It will take about 26 minutes to install a single tile.

12. By looking at the chart it can be assumed that installing a light takes about 22 minutes since it is in the middle of 20 and 24 minutes. Installing a cable only takes 12 minutes.

22-12= 10 minutes

It takes about 10 minutes longer to install a light than it does a cable.

5 0
2 years ago
A number is 11 less than 3 times another number. The sum of the numbers
Mila [183]

Step-by-step explanation:

this is simple use it and enjoy

8 0
3 years ago
Read 2 more answers
A single die is rolled. what is P(3)
Triss [41]

Answer:

what? I am so confused. How you worded it is confusing

Step-by-step explanation:

6 0
3 years ago
The sum of 3 times a number and 6 equals 7.
JulsSmile [24]

Answer:

3n + 6 = 7

Hope this helps!

8 0
3 years ago
Read 2 more answers
Other questions:
  • Find the height of the tree.<br> 19<br> SR<br> 21<br> 20
    15·2 answers
  • Can you help me with 14 plz tell me how you got the answer plz them you if you help
    7·2 answers
  • How do you solve y= 3x - 9 + 8x
    15·2 answers
  • Which type of line establishes special angle relationships when intersected with one or more lines?
    13·1 answer
  • Which word best describes a set of 3 or more different points that are all on the same line.
    7·2 answers
  • The factorisation of y2-7y+12 is <br><br> +100points and brainliest
    15·2 answers
  • What is the domain, range, and asymptote line of y=2^x-3
    15·1 answer
  • To prove ABC= ADC, To prove which triangle postulate could you use?
    9·2 answers
  • Jenny wants to earn $ 1,300 by the end of the summer . How much more dose she need to earn to reach her goal? she already has $1
    15·2 answers
  • A group of researchers are interested in the possible effects of distracting stimuli during eating, such as an increase or decre
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!