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
antiseptic1488 [7]
3 years ago
9

The radioisotope Mo-91 has a t1/2 of 15.5min. A sample decays at the rate of 954counts/min (954cpm). After how many minutes will

the decay be at 7.45cpm? (Step by step please)
Mathematics
1 answer:
TiliK225 [7]3 years ago
5 0

Step-by-step explanation:

Transcribed image text: Spectra Analysis 7 100 80 60 40 20 150 50 STRUCTURE 60 40 20 0 180 160 140 120 100 8O

You might be interested in
ABCD is a parallelogram.
kow [346]

Opposite sides of a parallelogram are equal lengths, so ...

... AB = CD

... 6x +30 = 2y -10

and

... BC = AD

... 2x -5 = y -35

_____

The equations can be put in standard form to get

... 3x -y = -20

... 2x -y = -30

Subtracting the second from the first, we get

... x = 10

Solving for y, we have

... y = 2x+30 = 2·10 +30 = 50

The values of x and y are x=10, y=50.

_____

AB = 6x+30 = 90

BC = 2x-5 = 15

3 0
3 years ago
A local theater charges $3 for student tickets and $5 for adult tickets. If they sold 85 tickets for a total of 301.00, how many
harkovskaia [24]

Answer:

20

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Express the angle in radian measure<br> 108 degrees= __pi/___
Alexandra [31]

Answer:

108° = \frac{3\pi }{5} radians

Step-by-step explanation:

To convert from degrees to radians

radians = degree measure × \frac{\pi }{180}, thus

radian measure = 108° × \frac{\pi }{180} = \frac{3\pi }{5}

6 0
3 years ago
Find the radius of the button 28mm
kirill [66]

Answer:

28mm

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
I need Help please!!
-BARSIC- [3]

Answer:

Step-by-step explanation:

The unknown is 5 I.e

1+5 = 6

5 + 5 = 10

8 + 5 = 13

Then n + 5

3 0
2 years ago
Other questions:
  • 7 of every 20 employees at v&amp;b bank company are between the ages of 20 and 30 if there are 13220 employees at B&amp;B Bank c
    15·1 answer
  • The relationship between the number of hours a plumber works and the total work fee she charges is proportional. Her fee for 5 h
    11·1 answer
  • A company make concrete bricks shaped like rectangular prisms.
    7·1 answer
  • Which equations represent circles that have a diameter of 12 units and a center that lies on the y-axis? Select two options. x2
    6·2 answers
  • #16. Do the ordered pairs (-5,19), (-1,7),(3,-5),(6,-14), and (9,-23) represent a linear function? How do you know?
    10·1 answer
  • Plsss help meeeee 7^-8 divided by 7^-11
    11·2 answers
  • Select an expression that shows the sum of exactly two terms that is equivalent to 3(x + 7).
    14·1 answer
  • A 12 pack of diet soda has dimensions 4.75in and 28.5in whats the volume of the 12 pack round to the nearest ten
    7·1 answer
  • 1: n/-3 - 8 &lt; 17<br> 2: n/-2 + 11 &gt; 17
    8·1 answer
  • There are 2 boys for every 3 girls. Today 5 new boys were added making the number of girls and boys the same. How many boys and
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!