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
salantis [7]
3 years ago
12

Sodium - 24 has a hourly decay rate of 5%

Mathematics
1 answer:
allsm [11]3 years ago
5 0

Answer:

The amount of sodium- 24 remain after 90 hours of decay is 8.90 gram

Step-by-step explanation:

Given as :

The amount of sodium-24 = 900 gram

The decay rate of sodium is 5 %

The time period for its decay  = 90 hours

Final value of sodium -24 = initial value \times  (1 - \frac{Rate}{100})^{Time}

Or, Final value of sodium -24 = 900 gram \times  (1 - \frac{5}{100})^{90}

Or, Final value of sodium -24 = 900 g × (0.95)^{90}

Or,  Final value of sodium -24 = 900 g × (9.88)^{-3}

∴ Final value of sodium -24 = 8.899 gram

Hence The amount of sodium- 24 remain after 90 hours of decay is 8.90 gram    Answer

You might be interested in
Determine whether the given measures can be the lengths of the sides of a triangle write yes or no
ohaa [14]

NO.,the given measures can not be the lengths of the sides of a triangle

Step-by-step explanation

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

so, Find the range for the measure of the third side of a triangle given the measures of two sides.

here given measures are 2,2,6

2+2 = 4 which is less than the third side 6

        = 4 < 6    

This not at all a triangle.

Hence, the given measures can not be the lengths of the sides of a triangle

3 0
3 years ago
Which of the following is a point-slope equation of a line that passes through
Mademuasel [1]

Answer:

The Answer is: y = -2/3x + 10/3

Step-by-step explanation:

Given points (-1, 4) and (8, -2) first find the slope:

m = (y - y1)/(x - x1)

m = (4 - (-2)) / (-1 - 8)

m = 4 + 2 / -9

m = -6/9 = -2/3

Use the point slope form and point (8, -2) and slove for y:

y - y1 = m(x - x1)

y - (-2) = -2/3(x - 8)

y + 2 = -2/3x + 16/3

y = -2/3x + 16/3 - 2

y = -2/3x + 16/3 - 6/3

y = -2/3x + 10/3

Proof using the point (-1, 4):

f(-1) = -2/3(-1) + 10/3

= 2/3 + 10/3

= 12/3 = 4, giving point (-1, 4)

Hope this helps! Have an Awesome Day!! :-)

4 0
3 years ago
As a contestant on a televised game show, Akash gets to spin the big prize wheel, which has a radius of 2 yards. What is the pri
ANTONII [103]

Answer:

4 yards. The radius is half the diameter of the circle and the length of one point of the circle to the center of the circle.

Step-by-step explanation:

3 0
3 years ago
A youth group earns $600 for charity and decides to put it in a bank. Calculate the amount of money the group will have for each
igomit [66]

Based on the types of compounding and the interest rates, the following are true:

  • Part A - The group will have $750
  • Part B - The group will have $759.19

When using simple interest, the amount the group will have is:

<em>= Amount x ( 1 + rate x number of years )</em>

= 600 x ( 1 + 5% x 5)

= $750

When using compound interest, the group will have:

<em>= Amount x ( 1 + rate) ^ Number of years</em>

= 600 x ( 1 + 4%)⁶

= $759.19

In conclusion, compound interest yields more.

<em>Find out more about </em><em>compound interest </em><em>at brainly.com/question/25263325. </em>

4 0
2 years ago
Kim purchased a $65.00 dress for 20% off. How much did she pay for the dress?
const2013 [10]
She paid $52

Hope this helps :)
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of 5^3i^9<br> -125i<br> -15i<br> 15i<br> 125i
    14·2 answers
  • If a+b = 8, b+c = -3, and a+c = -5, what is the value of the product abc?
    15·1 answer
  • What times what equals 19
    9·2 answers
  • Next two sets of numbers after 3-6, 7-14
    6·1 answer
  • A professor teaches a certain section of material using a lot of examples with sports and cars to illustrate. He is concerned th
    12·1 answer
  • Please help!!!!!!!!! Is for today I need helppppp
    5·1 answer
  • PLEASE HELP-20 points
    9·1 answer
  • Multiply 6 times two-ninths.
    11·1 answer
  • A bag contains 5 red marbles, 6 blue, and 4 green. If three marbles are drawn what is the probability to the nearest 10th all th
    12·1 answer
  • Pleaseee hurry and answer
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!