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
alisha [4.7K]
3 years ago
7

If an object goes from 50 mph to 30 mph in 5 seconds, what is its acceleration?

Mathematics
2 answers:
lions [1.4K]3 years ago
8 0

Answer: -4 mph/s

Step-by-step explanation:

Remember the formula:

FinalVelocity = InitialVelocity + (acceleration)(time)

50 = 30 + (a)(5)

a = (30 - 50)/5

a = -4 mph/s

Viktor [21]3 years ago
7 0

Answer:

-4 mph/sec

Step-by-step explanation:

You might be interested in
Which table can be created using the equation below? –2 + 4x = y A 2-column table with 3 rows. Column 1 is labeled x with entrie
Pachacha [2.7K]

The correct answer is C. A 2-column table with 3 rows. Column 1 is labeled x with entries negative 5, 0, 3. Column 2 is labeled y with entries negative 18, negative 2, 10.

Explanation:

The purpose of an equation is to show the equivalence between two mathematical expressions. This implies in the equation "–2 + 4x = y" the value of y should always be the same that -2 + 4x. Additionally, if a table is created with different values of x and y the equivalence should always be true. This occurs only in the third option.

   x                 y

   5                -18    

   0                -2

   3                 10

First row:

-2 + 4 (5) = y  (5 is the value of x which is first multyply by 4)

-2 + 20 = -18 (value of y in the table)

Second row:

-2 + 4 (0) y

-2 + 0 = -2

Third row:

-2 + 4 (3) = y

-2 + 12 = 10

5 0
3 years ago
Read 2 more answers
Write a formula for perimeter and area of a circle<br> Thank you !
Ratling [72]

Answer:

<em>The area of a circle is πr2 and the perimeter (circumference) is 2πr</em>

<em>thank</em><em> </em><em>you</em><em> </em><em />

3 0
3 years ago
Read 2 more answers
Find m ABC (2x+14) (x+7) ​
Orlov [11]

Answer:

Last option 30°

damm sure about it

Step-by-step explanation:

value of x is 23 but value of Angle ABC will be x +7 i.e. 30

6 0
3 years ago
Read 2 more answers
Serena bought a total of 135 notebooks and pencils for her students. Each notebook cost $1.75, and each pencil cost $0.35. The t
notsponge [240]

Answer:

81 pencils is the answer

8 0
3 years ago
A radioactive substance decays exponentially. A scientist begins with 100 milligrams of a radioactive substance. After 27 hours,
never [62]
33.3 because 27/50=36/x and x=66.67 and thats how much as decayed after 36 hours but you want what is left so subtract from 100 and get 33.3
7 0
3 years ago
Other questions:
  • Eight hundred and five thousandths expressed as decimal numbers
    9·1 answer
  • 4. Write the radical expression in rational exponent form.<br>5√a
    13·1 answer
  • Octavio Harvey wants the photocopy of a document that measures 6 centimeters by 9 centimeters enlarged by a factor of 3.
    6·1 answer
  • The value of Peter's house has risen 20% a year for the last 3 years. If the value of Peter's home 3 years ago was $110,000.00,
    7·2 answers
  • (3x + 8)
    14·1 answer
  • How many solutions are there to the system of equations 4x-5y=5 and -0.08x + 0.10y=0.10
    13·2 answers
  • What is the answer to this?! <br> 2/3x−1/5x=x−1
    9·2 answers
  • Wich is corect btw this is homework
    7·1 answer
  • PLEASE HELP ASAP!! GIVING AWAY BRAINLY if correct AND PLUS 50 pts
    9·2 answers
  • I need help ASAP!!Please help me
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!