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
Tanya [424]
2 years ago
13

During a trip, a driver travelled a distance of 80km at an average speed of 60km/hr.He then changed his speed and travelled the

remaining 20km of his journey at 30km/hr. What was the drivers average speed for the entire journey?
Show all working!!​
Mathematics
1 answer:
oksian1 [2.3K]2 years ago
4 0

Answer:

50 km/hr

Step-by-step explanation:

D = RT

Time for first part of trip = 80/60 = 4/3 hr.

Time for second part of trip = 20/30 = 2/3 hr.

total time for entire trip = 4/3 + 2/3 = 6/3 = 2 hr.

Total distance = 100 km

Average rate of speed for entire trip = 100/2 = 50 km/hr

You might be interested in
Car rentals involve a $130 flat fee and an additional cost of $31.67 a day. What is the maximum number of days you can rent a ca
Elanso [62]
With a $500 budget you can rent a car for 11 days as $500-$130 is $370 which you then divide by $31.67 which gives you 11.682
3 0
3 years ago
Kaytaytay talk here
DochEvi [55]
Integers I believe :) hope this helps
5 0
1 year ago
You went to the mall with $80. You spent 25% of your money on a pair of shorts and 65% of the remainder on sandals. How much did
Lapatulllka [165]
He spent $52 on sandals. I got this by multiplying 65% by $80 and got $52.

In short answer $52 
4 0
3 years ago
Read 2 more answers
For a circle with a radius of 6 meters, what is the measurement of a central angle (in degrees) subtended by an arc with a lengt
lesantik [10]
I hope this helps you




Arc length = central angle/360.2pi.r


7/3pi=?/360.2pi.6


?=7.10


?=70
8 0
3 years ago
Read 2 more answers
PLEASE HELPPPPP!!!!!!!!!!!!A local company employs a varying number of employees each year, based on its needs. The labor costs
AleksAgata [21]

Answer: 50 people.

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • The hourly temperature at Portland, Oregon, on a particular day is recorded below.
    5·1 answer
  • Grandma has 14 red roses and 7 pink roses how many more red roses than pink does she have explain how you solve the promblem
    6·1 answer
  • Which line plot displays a data set with an outlier?<br><br> Plz answer quickly!
    13·1 answer
  • Jacob has played basketball for 2 years and football for 4 years. What is the ratio of basketball to football?
    8·2 answers
  • the number of chirps made by a cricket varies directly as the temperature. If at 12 degrees a cricket chirps 30 times per minute
    7·1 answer
  • Last Wednesday, they sold 100 adult (a), student (s), and senior (1) tickets for a total of $952 50. That evening, ten more stud
    12·1 answer
  • Estimate 208/51= ? what is it?
    7·1 answer
  • Simplify each of the expressions below. Which of the expressions have a value between 100 and 200? Select all that apply.
    11·2 answers
  • Morgan is reupholstering an old chair with two circular cushions. Each cushion has a circumference of 7. 85 feet. He will need t
    11·1 answer
  • Erika is working on solving the exponential equation 50x = 17; however, she is not quite sure where to start. using complete sen
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!