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
vlabodo [156]
3 years ago
13

The half-life of the radioactive element unobtanium-43 is 10 seconds. If 48 grams of unobtanium-43 are initially present, how ma

ny grams are present after 10
seconds? 20 seconds? 30 seconds? 40 seconds? 50 seconds?
Mathematics
1 answer:
natka813 [3]3 years ago
7 0

Answer:

At time, 10 seconds, the mass remaining is 24 grams

At time, 20 seconds, the mass remaining is 12 grams

At time, 30 seconds, the mass remaining is 6 grams

At time, 40 seconds, the mass remaining is 3 grams

At time, 50 seconds, the mass remaining is 1.5 grams

Step-by-step explanation:

Given;

initial mass of the radioactive element  = 48 grams

half life, t = 10 seconds

time of decay (s)                          remaining mass of the  radioactive element

0 ------------------------------------------------- 48 grams

10------------------------------------------------- 24 grams

20 ------------------------------------------------- 12 grams

30 -------------------------------------------------- 6 grams

40 --------------------------------------------------- 3 grams

50 ----------------------------------------------------- 1.5 grams

60------------------------------------------------------0.75 grams

Thus;

At time, 10 seconds, the mass remaining is 24 grams

At time, 20 seconds, the mass remaining is 12 grams

At time, 30 seconds, the mass remaining is 6 grams

At time, 40 seconds, the mass remaining is 3 grams

At time, 50 seconds, the mass remaining is 1.5 grams

You might be interested in
What type of slop..<br> Undefined<br> Positive slope <br> Zero slope <br> Negative slope
BartSMP [9]

Answer:

zero slope

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
7 times the difference of x and 8
Thepotemich [5.8K]

Answer:

7(x - 8)

Step-by-step explanation:

times means multiplication

difference means subtraction

7 times the difference of x and 8 -> 7 * (x - 8) -> 7(x - 8)

Simplify if needed.

7(x - 8)

~Distribute

2x - 56

Best of Luck!

8 0
3 years ago
Which equation has a graph that is a parabola with a vertex at (5, 3)?
Dominik [7]

Answer:

It is "A" or in other words the one that says (x-5)2+3 because when you graph it you can see it is the only one touching that point!

Step-by-step explanation:

7 0
3 years ago
A bicycle store also sells tricycles.
storchak [24]
The answer is 18 because 3 times 6 is 18
5 0
3 years ago
Naomi surveyed some students to determine their favorite subject. The experimental probability of a student choosing math as the
yawa3891 [41]
64 because if she asked some students she didn’t ask her class
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is Slope and how is it determined from a graph?
    11·1 answer
  • Think about using decimal models to show 6.84. If you only used tenths what place would you not be able to model? How many tenth
    12·1 answer
  • HELP MARKING BRAINLEIST
    12·1 answer
  • I WILL MARK BRAINLIEST
    11·1 answer
  • What is s equaled too
    8·1 answer
  • Please answer give it too me now
    5·1 answer
  • Please help! 10 POINTS!<br> Please solve<br><br> 2x^2+10+8=0
    5·1 answer
  • 3u = 72 simplified math problem
    8·2 answers
  • Can help me with math please and thank you
    6·2 answers
  • In an ordered pair, the y-coordinate tells you how far to move from the origin parallel to the______. X-axis/y-axis​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!