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
Solnce55 [7]
3 years ago
12

In 1990, there were 4,500 deaths due to lung diseases in miners aged 20 to 64 years. The expected number of deaths in this occup

ational group, based on age-specific deaths rates from lung diseases in all males aged 20 to 64 years, was 1,800 during 1990. What is the standardized mortality ratio (SMR) for lung disease in miners
Mathematics
1 answer:
DIA [1.3K]3 years ago
7 0

Answer:

2.5

Step-by-step explanation:

We have that the standardized mortality ratio (SMR) is the relationship between the number of deaths observed in a year, that is, those that occurred and the number of expected deaths, that is, those that were predicted.

SMR = observed / expected

therefore if we replace we have:

SMR = 4500/1800

SMR = 2.5

Which means that the standardized mortality ratio (SMR) is 2.5

You might be interested in
Two pencils and a ruler cost 98 cents in total. One pencil and 2 rulers cost $1.24 in total. Find the cost of each item.
salantis [7]

Answer:

2.16

Step-by-step explanation:

r = cost of ruler

p = cost of pencil

 

r = 2p

6r + 15p = 2.16

 

Substitute 2p in place of r in 2nd equation and solve for p

 

6(2p) + 15p = 2.16

12p + 15p = 2.16

27p = 2.16

5 0
3 years ago
Read 2 more answers
Find the area of the shape shown below.
maw [93]

Answer:

The area is 28.

Step-by-step explanation:

Visualize the rectangle as 2 split squares.

The top square is easily 4x4, so the area of that part is 16.

Now visualize the bottom square as two rectangles.

To find the area of the dented side, you would use the equation of finding the area of a triangle, a=(w x h)\frac{1}{2} because the dented side is actually just one half of the rectangle on the other side.

Since it is the same height as the top square, but is 2 in width, it would be written as a=(2 x 4)\frac{1}{2} . So the area of that part is 4, and the area of the other rectangle would be just 2 x 4 so it is 8.

Totaling these numbers, you get the area of the full rectangle.

8 0
3 years ago
Read 2 more answers
Can you help me with this question??
Cloud [144]

Answer:

9.42

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
P/5 = 10 what is p
Sav [38]

Answer:

50

Step-by-step explanation:

p/5=10

Your main goal is to isolate p

p/5 = 10, in order to eliminate the 5, multiply 5 on both sides, since it's the inverse of division.

(5)p/5 = 10(5)

p=50

7 0
3 years ago
!!!HELP ME WITH THIS QUESTION PLEASE!!!
Triss [41]

Answer:

C

Step-by-step explanation:

Hope this helps

7 0
2 years ago
Other questions:
  • Paul wants to write equations in the form y=mx+b for the lines passing through point D that are parallel and perpendicular to li
    10·2 answers
  • If you flip a fair coin 444 times, what is the probability that you will get exactly 222 tails?
    11·2 answers
  • Follow these instructions to make your own triangle?
    9·1 answer
  • Subtract<br> - 20 from<br> - 25.
    13·2 answers
  • Look for a pattern in the table to determine which model best describes the data.
    8·2 answers
  • Let f(x)=6xf(x)=6x. The graph of f(x)f(x) is transformed into the graph of g(x)g(x) by a vertical compression of 1/3 and a trans
    8·2 answers
  • Find the measure of angle w.'<br> 5 points<br> wo<br> 124°<br> О124<br> О 34<br> оооо<br> 56
    14·1 answer
  • Use a calculator to find the correlation coefficient of the data set.
    7·1 answer
  • 2x + y = 7 -4x = 2y + 14 Is it single solution No solution or many solution
    6·1 answer
  • Find 25.5% of 237. Round to the nearest tenth.​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!