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
lina2011 [118]
2 years ago
15

Pls answer the question with explanation

Mathematics
1 answer:
Vlad1618 [11]2 years ago
7 0

Answer:

<em>a) She started walking back</em>

<em>b) 0.13 km/min</em>

Step-by-step explanation:

The graph shows the distance traveled by Jo. She starts her journey (t=0) at a distance of 0 Km since the graph passes through the origin (0,0).

a) Ten minutes later she is at a distance of 1 km from the starting point and then the distance starts to drop. This means that at t=10 minutes, she started walking back.

b) To calculate the speed for the last 30 minutes of journey, we find the slope of the line. Select the points (30,0) and (60,4).

If a given line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:

\displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Substituting:

\displaystyle v=\frac{4-0}{60-30}=\frac{4}{30}

v=0.13 km/min

You might be interested in
If a cookie recipe that makes 2 dozen cookies calls for 2 1/4 cups of flour, how cups of flour do you need to make 5 dozen cooki
Schach [20]

Answer:

5. 5/8 flour needed to make 5 dozen cookies

Step-by-step explanation:

2 dozen= 24

5 dozen=60

It takes 1 1/8 flour for 1 dozen cookies so 1 1/8 x 5= 5.625 in fraction form that= 5 5/8

5 0
2 years ago
Please answer with clear instructions so that i can apply this to other questions
Strike441 [17]

Answer:

  x = 2 ,  3/2

Step-by-step explanation:

3 0
2 years ago
What is 21% as a fraction
Kruka [31]
21/100 is a fraction form
6 0
3 years ago
Read 2 more answers
A homeowner measured her rectangular backyard as having a length of 40 yards and a width of 25 yards. Her measurements were accu
kotegsom [21]

Answer:

B.

Step-by-step explanation:

7 0
3 years ago
Describe the relationship between the perimeter of a triangle and the perimeter of the triangle that is formed by the midsegment
lilavasa [31]
It is 1/4 of the area of the larger triangle...basically if you connect the three midpoints of the triangle's sides it creates four identical smaller triangles...

The perimeter is one half of the larger triangle...


3 0
2 years ago
Other questions:
  • 2 Points
    8·2 answers
  • MATH HW..... good answers only!!!
    15·2 answers
  • WILL MARK BRAINLEIST PLEASE HURRY
    12·2 answers
  • If the parallelogram is dilated by a factor V what is the new area​
    10·2 answers
  • Please help ASAP!!!!
    15·1 answer
  • I hate algebra so much, any help?
    10·2 answers
  • PLZ PLZ PLZ PLZ HELP
    5·1 answer
  • ANSWER ASAP NO FILES OR LINKS (LAST ONE) (maybe)
    9·1 answer
  • The quotient of twenty-nine and a number h
    7·1 answer
  • What is the value of Sin F
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!