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
pishuonlain [190]
3 years ago
13

Question 1

Mathematics
1 answer:
Tanzania [10]3 years ago
5 0

Answer:

Mortality rate is 0.5 per 1000 habitant

the number of deaths have increased (from 210 to 250)

Step-by-step explanation:

Hello

Mortality rate is the number of deaths in a specific population,usually expressed in units of deaths per 1,000 individuals per year

Mortality\ rate\ (S)= \frac{(D)}{(P)} *10^{n} \\\\\\\\

where

S=Mortality rate

D=deaths

P= population

n= is a conversion form ,such as multiplying by  10^{3}=1000, to  get mortality rate per 1,000 individuals( we will use n=3)

step 1

asign

S=unknown

D=250

P=500000

n=3, (for each  1000 people)

step 2

Replace

S=\frac{250}{500000}*1000\\S=\ 0.5\ per\ 1000

Mortality rate is 0.5 per 1000 habitant

step 3

what if S=0.42

S=0.42(assuming it is 0.42 per 1000,n=3)

D=unknown

P=500000

(S)= \frac{(D)}{(P)} *10^{n}\\\\isolatin D\\\\S*P=D*10^{n}\\ D=\frac{S*P}{10^{n} } \\\\and\ replacing\\\\D=\frac{(0.42)*(500000)}{10^{3} }\\\\ Deaths=210\\

the number of deaths have increased (from 210 to 250)

Have a great day

You might be interested in
4 to the seventh power over 5 squared all raised to the third power
Komok [63]

(4^7 / 5^2)^3

= 4^21 / 5^6

Answer

4^21 / 5^6

3 0
3 years ago
Read 2 more answers
What would x and y be in this equation 4x - 5y =7
vekshin1

x-intercept:  

(-7/4 , 0)

y-intercept:(0 , 7/5)

6 0
3 years ago
A rug is to fit in a room so that a border of consistent width is left on all four sides. If the room is 15 ft by 25 ft and the
AlladinOne [14]

Answer: Option 'a' is correct.

Step-by-step explanation:

Since we have given that

Dimensions of the room is given by

15 ft by 25 ft

Let x be the width around the rug.

So, new length = 15-2x

new breadth = 25-2x

Since Area of the rug = 264 sq. ft

So, it becomes,

\text{Area of rug}=Length\times breadth\\\\264=(15-2x)(25-2x)\\\\264=375-30x-50x+4x^2\\\\264=375-80x+4x^2\\\\4x^2-80x+375-264=0\\\\4x^2-80x+111=0\\\\x=\dfrac{3}{2}\ or\ x=\dfrac{37}{2}\\\\x=1.5\ ft

Hence, Option 'a' is correct.

4 0
3 years ago
Bill and Greg are walking in opposite directions with speeds of 45 and 75 feet per minute. When they started, the distance betwe
mr_godi [17]
Their distance would be 50 feet in 2.5 minutes, if the speeds remain constant.
3 0
3 years ago
Use the following table to determine P(X≤3).
DiKsa [7]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

P(x \leqslant 3) = P(1) + P(2) + P(3) \\

P(x \leqslant 3) = 0.25 + 0.32 + 0.17  \\

P(x \leqslant 3) = 0.74

Thus the correct answer is

the last option .

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

5 0
3 years ago
Other questions:
  • Greg rented a truck for one day there was a base fee of $16.99 and there was additional charge of $.89 for each mile driven Greg
    14·1 answer
  • Is 432 divisible by 9<br> I’m looking for the estimate 432 divided by 9
    11·1 answer
  • If QR is 7 less than twice X, RS is 61 less than 5 times x, and QS is 11 more than x, find X and the measure of each side.
    10·1 answer
  • Find the slope passes through (-5,2) and (3,3)
    13·1 answer
  • Math Problem Solving with Surface Area and Volume: Grade 8
    13·1 answer
  • 1/7x1/7x1/7= 3/7 true or false
    8·2 answers
  • Hat term can you add to StartFraction 5 over 6 EndFraction x minus 4 to make it equivalent to One-half x minus 4?
    9·1 answer
  • Gt6tys56ytujr7dsy6rtuhgjfyhjfvchfgjvcxfdcgfhvn jhmc dghvbdcjghb
    14·1 answer
  • What's is 1 2/3- 3/15​
    12·1 answer
  • Lines DE and AB intersect at point C.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!