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
Kipish [7]
3 years ago
13

If a train travels at the speed of 100 km how far will it travel in half an hour

Mathematics
2 answers:
brilliants [131]3 years ago
7 0

Answer:

Step-by-step explanation:

choli [55]3 years ago
4 0

Answer:

50 kilometers

Step-by-step explanation:

If it travels 100 in an hour, it would travel 50 in half

You might be interested in
Solve algebraically. <br>6(t-2) + 15t &lt; 5(5 + 3t) <br><br>With work shown please!!​
sammy [17]

Step-by-step explanation:

6t-12+15t | 25+15t

21t-12 | 25+15t

21t-12 < 25+15t

hence proved..

8 0
3 years ago
Read 2 more answers
the population of happy land is 15.8 happys per acre exactly 553 happys live in happy land. how many acres is happyland
Crank

Answer:

35 acres.

Step-by-step explanation:

Proportions:

15. 8 ⇒ 1 acre

553 ⇒  P acres

P = 553*1/15.8

P = 35 acres

5 0
1 year ago
Situation:A researcher in North America discoversa fossile that contains 65% of its originalamount of C-14..-ktN=NoeNo inital am
zheka24 [161]

SOLUTION

We have been given the equation of the decay as

\begin{gathered} N=N_0e^{-kt} \\ where\text{ } \\ N_0=initial\text{ amount of C-14 at time t} \\ N=amount\text{ of C-14 at time t = 65\% of N}_0=0.65N_0 \\ k=0.0001 \\ t=time\text{ in years = ?} \end{gathered}

So we are looking for the time

Plugging the values into the equation, we have

\begin{gathered} N=N_0e^{-kt} \\ 0.65N_0=N_0e^{-0.0001t} \\ e^{-0.0001t}=\frac{0.65N_0}{N_0} \\ e^{-0.0001t}=0.65 \end{gathered}

Taking Ln of both sides, we have

\begin{gathered} ln(e^{-0.000t})=ln(0.65) \\ -0.0001t=ln(0.65) \\ t=\frac{ln(0.65)}{-0.0001} \\ t=4307.82916 \end{gathered}

Hence the answer is 4308 to the nearest year

8 0
10 months ago
Books spontaneously catch on fire in temperatures at or above 451, degree Fahrenheit. Write an inequality that is true only for
Brilliant_brown [7]
For this case, the first thing you should do is define a variable.
 We have then:
 t: temperature (degree Fahrenheit).
 We write then the inequation that adapts to the problem:
 t> = 451
 Answer:
 
an inequality that is true only for temperatures at which books spontaneously catch on fire is:
 
t> = 451
3 0
3 years ago
Factor the expression 4x + 32. Explain each step you take in the process.
irinina [24]

Step-by-step explanation:

1. What the GCF

the GCF is 4

4(x + 8)

2. divide by 4

4(x+8) is the solution

4 0
3 years ago
Read 2 more answers
Other questions:
  • Graph the equation m: 9x +3y=18
    9·1 answer
  • Which of the following inequalities represents the statement of: a number x increased by 4 is greater than or equal to 19
    12·1 answer
  • Which of the following represents an equation of a line with a slope of -4 and that passes through the point (-2, 3)?
    10·1 answer
  • An angle measures 125 degrees. Through what fraction of a circle does the angle turn?
    6·2 answers
  • Write an equation of the line below.
    10·1 answer
  • Isaac is constructing a circular pool that has a diameter of 20 ft and is 5 ft deep. Part A: Find the circumference of the pool
    14·1 answer
  • Three more than 4 times a number
    12·1 answer
  • (−8/9) ÷ (−2/3) × (−4 1/2)
    12·2 answers
  • The table shows the relationship between the number of almonds and the number of cashews in various measures of chocolate fudge.
    12·1 answer
  • (y + 4)^2 – 2(y + 4) + 1
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!