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
Lorico [155]
3 years ago
8

ASAP plzzzz help I need answerssss

Mathematics
1 answer:
fiasKO [112]3 years ago
3 0
A] David's speed during the period:
i] AB
speed=distance/time
time taken between AB=0.5 hours
distance=20 km
thus
speed=20/0.5=40 km/h

ii]BC
time taken between BC=1.5 hours
distance=20
speed=20/1.5=13 1/3 km/h


b] Average speed for the entire time will be:
average speed=(total distance)/(total time)
total distance=(20+20+20)=60 km
total time=3 hours
thus
average speed=60/3=20 km/h


c] David's distance 2 hours and 15 minutes from the starting point was:
 distance=20+20+10=50 km
You might be interested in
​ c(1)=−20 c(n)=c(n−1)+10 ​ Find the 2nd term in the sequence.
Bad White [126]

Answer:

-10 is the second term.

Step-by-step explanation:

After the first term each term is obtained from the previous one by adding 10.

c(1) = -20

so c(2) = -20 + 10

= -10.

3 0
3 years ago
HELP ME PLEASEE I WILL MARK BRAINLIEST
igor_vitrenko [27]

Answer: $21.6

Step-by-step explanation: you multiply 1.20 by 18

7 0
3 years ago
Read 2 more answers
I need help plz problem attached, Thanks.
Ivenika [448]
The answer would be -1 14/15
3 0
3 years ago
Read 2 more answers
NEED HELP FAST!!! Find the percent of increase from 260 to 430. Round to the nearest tenth of a percent if necessary.
a_sh-v [17]

You started out with 260, and increased to 430.
The amount you increased was (430 - 260) = 170

170 is  (170/260) = <em>65.4%</em> of what you started with.

============================

Another way:

The new amount is  (430/260) of the old amount.

 430 / 260 = 1.654 = 165.4%

The original amount was  260.
You started with  100%  of it.
You ended up with  165.4%  of it.
That's an increase of  65.4% .

5 0
3 years ago
50 points pls go answer these questions worth 20 points if your good at math !! really need the answers thank you !!
inn [45]

Answer:

Ok :D

Step-by-step explanation:

.

4 0
2 years ago
Read 2 more answers
Other questions:
  • An item is regularly priced at $37. Kira bought it at a discount of 35% off the regular price.
    15·2 answers
  • 11 4/5 × 20<br>area of a parellelogram
    9·2 answers
  • Gordon wants to buy 3 2/5 cups of almonds. There are 1 7/10 cups of almonds in each package. How many packages of almonds should
    9·1 answer
  • Solve the inequality 8(x - 2) + 9 &lt; 3(x - 1) + 5x​
    13·1 answer
  • What is the fraction for five over two
    15·1 answer
  • 6. How much more is (6.48 x 10^5) than (3.2 x 10^2​
    15·2 answers
  • Joseph needs to calculate how much grass seed he needs to cover his lawn. A diagram of his lawn is shown below. One pound of see
    9·1 answer
  • Mark and Henry win some money and share it in the ratio 4:3. Mark gets £9 more than Henry. How much did they get altogether?​
    5·1 answer
  • 27. When $2400 is shared among three boys
    15·1 answer
  • WILL GIVE BRAINLIEST. Need an answer ASAP!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!