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
frozen [14]
2 years ago
11

An element with mass 820 grams decays by 26. 8% per minute. How much of the element is remaining after 18 minutes, to the neares

t 10th of a gram?.
Mathematics
1 answer:
andriy [413]2 years ago
5 0

The element is remaining after 18 minutes with the rate of decaying of 26.8 % is 2.99 grams.

<h3>What is the percentage?</h3>

The amount of something is expressed as if it is a part of the total which is a hundred. The ratio can be expressed as a fraction of 100. The word percent means per 100. It is represented by the symbol ‘%’.

An element with a mass of 820 grams decays by 26. 8% per minute.

Then the mass remaining after one minute will be

Remaining = 100 - 26.8

Remaining = 73.2 %

The element is remaining after 18 minutes will be

Mass = 820 × (0.732)¹⁸

Mass = 820 × 0.00364

Mass = 2.985

Mass ≈ 2.99

The element is remaining after 18 minutes is 2.99 grams.

More about the percentage link is given below.

brainly.com/question/8011401

You might be interested in
Ok whoever answers this correct will get 100 brainly points
Snezhnost [94]

Answer:

We are given an area and three different widths and we need to determine the corresponding length and perimeter.  

The first width that is provided is 4 yards and to get an area of 100 we need to multiply it by 25 yards.  This would mean that our length is 25 yards and our perimeter would be 2(l + w) which is 2(25 + 4) = 58 yards.

The second width that is given is 5 yards and in order to get an area of 100 yards we need to multiply by 20 yards.  This would mean that our length is 20 yards and our perimeter would be 2(l + w) which is 2(20 + 5) = 50 yards.

The final width that is given is 10 yards and in order to get an area of 100 yards we need to multiply by 10.  This would mean that our length is 10 yards and our perimeter would be 2(l + w) which is 2(10 + 10) = 40 yards.

Therefore the field that would require the least amount of fencing (the smallest perimeter) is option C, field #3.

<u><em>Hope this helps!</em></u>

3 0
2 years ago
Read 2 more answers
How do i find the answer
Dvinal [7]
You do!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
3 0
4 years ago
PLEASE HELP GIVING BRAINLIST
Mkey [24]

Answer:

a = 6

b = 48

Step-by-step explanation:

3*2^1 = 6

3*2^4 = 48

5 0
3 years ago
Read 2 more answers
Math, i can give you brainliset just help me with the two questions :)
Kay [80]

Answer:

2. the interquartile range is 20

3. 80 is the median.

Step-by-step explanation:

have a nice day.

8 0
3 years ago
Please help me answer this question. I will mark braineist to first answers no work nessacary.
andriy [413]

Plug in the given values and you'll see its option 2.

x=0 , f(x)  = 0^2 + 1 = 1

x = 1 , f(x) = 1^2 + 1 = 2

x = 2, f(x) = 2^2 + 1 = 5


4 0
3 years ago
Read 2 more answers
Other questions:
  • a baseball bat used in sale for $30.00.It has been discounted at half off.What was th original pruce of the bat?
    9·2 answers
  • Please help me on this question
    7·1 answer
  • What is f(-8) equal to......Please correct​
    15·1 answer
  • Find the mean and median of these data 2,5,9,11,17,19
    6·2 answers
  • WILL MARK BRAINLIEST!!! HELP!​
    14·2 answers
  • Please answer this correctly
    8·2 answers
  • Assume that x is a char variable has been declared and already given a value. Write an expression whose value is true if and onl
    12·1 answer
  • Help me w/ both of them pls The last one is just for me to laugh heheehe
    6·2 answers
  • Which of these choices show a pair of equivalent expressions? CHECK ALL THAT APPLY
    12·1 answer
  • Jasmine swims 12 laps every afternoon, Monday through Friday. How many laps does she swim in one week?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!