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
Anna35 [415]
2 years ago
11

Helen can write 15 postcards in one hour, while Kate can write

Physics
1 answer:
Akimi4 [234]2 years ago
4 0

Answer:5 hours

Explanation:

300 divided by 20 = 15

300 divided by 15 = 20

the difference is 5

You might be interested in
With a frequency of 500 hz, what is the period of a wave
Pavlova-9 [17]
<span>500 hz means 500 times in a second therefore its 2.</span>
5 0
3 years ago
Luke and Carrie are driving down a straight section of the interstate at 70 mph in Luke's new convertible. Carrie is drinking a
aleksandrvk [35]
I think is c am sorry if it is rongh
3 0
3 years ago
Read 2 more answers
PLZ ANSWER ASAP IF YOU KNOW THIS...At the county fair, Carrie and Sam climbed up on the carousel horses. Around and around they
Maslowich
The answer is (a) because movement is acceleration 
8 0
3 years ago
What do solar cells convert into electricity?<br> wind<br> SERE<br> water<br> sunlight<br> plants
STatiana [176]
Hi am not sure but have searched on online
5 0
3 years ago
Read 2 more answers
Which of the following statements about psychodynamic perspective is not true?
Free_Kalibri [48]
There are NO true statements on that list of choices.
3 0
3 years ago
Other questions:
  • What is the correct definition of solution?
    9·1 answer
  • Some fabrics build up better than others because
    9·2 answers
  • Integrated Concepts When kicking a football, the kicker rotates his leg about the hip joint. (a) If the velocity of the tip of t
    6·1 answer
  • Calculate the acceleration of Josh riding his bicycle in a straight line that speeds up from 4 m/s to 6 m/s in 5 seconds
    13·2 answers
  • A force of 20 newtons is exerted on a chair from its right and a force of 12 newtons is applied from
    6·1 answer
  • 4. An airplane normally flies at 240 km/hr. If it experiences a 80 km/hr tailwind
    5·1 answer
  • The initial momentum of a system is measured at 300 kg•m/s. Afterwards, the
    10·1 answer
  • An object has a mass of 7g and a volume of 14cm. What is the density
    14·1 answer
  • A car starts from rest and accelerates uniformly over a time of 7.25 seconds for a distance of 210 m. Determine the acceleration
    5·1 answer
  • Runs 4 m North and then runs 9 m West. Calculate Distance and Displacement.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!