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
Gelneren [198K]
2 years ago
13

Of a journey of 216km, 56km were on untarred road. for this part of the journey, a motorist could only average 28km/h. if his av

erage speed for the whole journey was 48km/h, what was his average speed for the part of the journey on tarred road?
​
Mathematics
1 answer:
kenny6666 [7]2 years ago
3 0

Answer:

64 km/hr

Step-by-step explanation:

216 - 56 = 160 km on good road

216km / 48 km/hr = 4.5 hours total time

56 km / 28 km/hr = 2 hours on bad road

   then 2.5 hours on good road   ( for total 4.5 hrs)  

         160 km / 2.5 hr = 64 km/hr on the good road portion

You might be interested in
I just wanted to see if I got my answers correct, please explain your answer so I can check up with mine.
kenny6666 [7]
B because you need to do 2/6 which is the probability of getting a number above 4 times 1/2 the probability of getting heads. 2/6 x 1/2 = 2/12 = 1/2
7 0
3 years ago
Read 2 more answers
A company's stock begins the week with a price of $43.85 per share. THe price changes by +$2.70 each day for the first two days,
mixas84 [53]

Given:

Initial price of the stock=$43.85

Change for the first two days=+$2.70

Change for next two days=-$1.10

Last day=-$4.45

The objective is to find the price at the last day.

Let's take the price at final day as <em>x</em>.

\begin{gathered} x=43.85+2.70+2.70-1.10-1.10-4.45 \\ x=42.6 \end{gathered}

Hence, the price of the stock at the last day is $42.6

5 0
1 year ago
In AKLM, m = 1.2 cm, k = 5.1 cm and
Elodia [21]

Answer:

  4.2 cm

Step-by-step explanation:

The law of cosines is applicable.

  l² = k² +m² -2km·cos(L)

  l² = 5.1² +1.2² -2·5.1·1.2·cos(35°) ≈ 17.4236

  l ≈ √17.4236

  l ≈ 4.2 . . . cm

4 0
3 years ago
A ,b, c, d , e, help please
Lelu [443]

Answer:

a= 131 21/30

b= 132 21/30

c= 132

Step-by-step explanation:

7 0
3 years ago
Please Help!!! i need it... :(
Gennadij [26K]
I hope this helps! It’s been a while since I’ve done slope-intercept though, so I might be a little rusty

4 0
2 years ago
Read 2 more answers
Other questions:
  • Hey can you please help me posted picture of question
    14·2 answers
  • Help I don’t understand this
    8·1 answer
  • What is the rate of change (2,20) and (5,47) ?
    8·1 answer
  • Need help WILL MARK BRAINLEST​
    14·1 answer
  • A line passes through the point , 9,−2 and has a slope of 4/3. Write an equation in point-slope form for this line.
    14·2 answers
  • A restaurant sells burritos for $8.00 each. The cost of the meat is $1.50 and the cost of the other ingredients is $1.00 for eac
    7·1 answer
  • Multiply and write in standard form.<br>(3x − 2)(5x2 – 3x + 4)​
    7·1 answer
  • The dot plot shows the number of chess games won by each of the 20 students in a competition.
    10·2 answers
  • What is the y-intercept? ​
    12·1 answer
  • Show work please.....
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!