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
r-ruslan [8.4K]
3 years ago
13

If 31,000 citizens died in an automobile accidents in 2015. how many died each hour

Mathematics
2 answers:
Dima020 [189]3 years ago
7 0
There are 8760 hours in a year so if you divide 31,000 by 8760 hours you should get 3.5 as your answer
stira [4]3 years ago
6 0
Work out the number of hours in  1 year:-

1 year = 365*24 = 8760

So the number dying each hour = 31,000 / 8760 = 3.54 
You might be interested in
7 / 3 as a mixed nummber
masha68 [24]

Answer:

2 and 1/3

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
What two values can replace -17x?
drek231 [11]
The answer is 6 or 8 which ever one u feel comfortable with
6 0
3 years ago
3. Which of the following quadratic equations has no solution? A) 0 = −2(x − 5)2 + 3 B) 0 = −2(x − 5)(x + 3) C) 0 = 2(x − 5)2 +
klemol [59]

Answer:

D) 0 = 2(x + 5)(x + 3)

Step-by-step explanation:

Which of the following quadratic equations has no solution?

We have to solve the Quadratic equation for all the options in other to get a positive value as a solution for x.

A) 0 = −2(x − 5)2 + 3

0 = -2(x - 5) × 5

0 = (-2x + 10) × 5

0 = -10x + 50

10x = 50

x = 50/10

x = 5

Option A has a solution of 5

B) 0 = −2(x − 5)(x + 3)

Take each of the factors and equate them to zero

-2 = 0

= 0

x - 5 = 0

x = 5

x + 3 = 0

x = -3

Option B has a solution by one of its factors as a positive value of 5

C) 0 = 2(x − 5)2 + 3

0 = 2(x - 5) × 5

0 = (2x -10) × 5

0 = 10x -50

-10x = -50

x = -50/-10

x = 5

Option C has a solution of 5

D) 0 = 2(x + 5)(x + 3)

Take each of the factors and equate to zero

0 = 2

= 0

x + 5 = 0

x = -5

x + 3 = 0

x = -3

For option D, all the values of x are 0, or negative values of -5 and -3.

Therefore the Quadratic Equation for option D has no solution.

3 0
3 years ago
Wave erosion causes a coastline to recede at a rate of 3.5 centimeters each year. After 9.25 years, how many centimeters will th
Nadya [2.5K]

Answer:

-32.375

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Maya drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 12 hours. When Maya drove
Roman55 [17]

Answer:

480 miles.

Step-by-step explanation:

Let x represent the distance between Maria's house and mountains ans r represent Maria's rate for going trip.

We have been given that there was heavy traffic on the way there, and the trip took 12 hours.

\text{Distance}=\text{Rate}\times \text{Time}

x=12r

We are also told that hen Maya drove home, there was no traffic and the trip only took 8 hours. Maria's average rate was 20 miles per hour faster on the trip home.

So Maria's speed while returning back would be r+20.

x=8(r+20)

Upon equating both distances, we will get:

12r=8(r+20)

12r=8r+160

12r-8r=8r-8r+160

4r=160

r=\frac{160}{4}

r=40

Upon substituting r=40 in equation x=12r, we will get:

x=12r\\\\x=12(40)\\\\x=480

Therefore, Maya live 480 miles away from the mountains.

7 0
3 years ago
Other questions:
  • Solve for the valuable.<br><br> 7x - 3 = -9
    13·2 answers
  • Which function has an inverse that is also a function? {(–4, 3), (–2, 7), (–1, 0), (4, –3), (11, –7)} {(–4, 6), (–2, 2), (–1, 6)
    11·2 answers
  • Hello , Can someone explain this too me? I’m confused
    10·1 answer
  • S(t) = -120t + 1,080 to determine the salvage value, S(t), in dollars, of a table saw t years after its purchase. How long will
    15·1 answer
  • Your paycheck from work was $304.25. You used some of your earnings to buy an MP3 player for $149. Now it will cost you $1.15 to
    11·2 answers
  • 38217 to 2 significant figure
    5·2 answers
  • A scientific model doesn’t need to be something physical. It can also be a mathematical __________
    8·2 answers
  • Please help !!!!!!!!
    14·2 answers
  • The price of a sandwich decreases from $8 to $6. What is the percentage decrease in the price of the sandwich?
    11·1 answer
  • Cross multiply to determine whether the fractions are equivalent.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!