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
NISA [10]
3 years ago
5

2. A car takes 7 hours 50 minute to travel 549 9/10 km.

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
3 0
2.)

average velocity=(change in distance)/(change in time), in this case:

v=(549 9/10)/(7 50/60)

v=(5499/10)/(470/60)

v=(5499/10)(60/470)

v=32994/470

v=70.2 km/hr

...

picture

Make two position functions...

c=15t, and r=120-20(t-1)

c=15t, r=140-20t

They meet when c=r so:

15t=140-20t  add 20t to both sides

35t=140  divide both sides by 35

t=4

So they will meet 4 hours after Cindy leaves at 1 pm, thus they meet each other at 5 pm.

check...

c=15(4)=60

r=120-20(4-1)

r=120-20(3)

r=60




You might be interested in
Solve for x.<br><br> 25x=65<br><br><br> 1225<br><br> 125<br><br> 3<br><br> 6
NARA [144]

25x = 65
Divide both sides by 25 to isolate x:

\frac{25x}{25}  =  \frac{65}{25}  \\  \\ x =  \frac{13}{5}  = 2.6
8 0
3 years ago
Read 2 more answers
If i= square root of -1, what is the value of i^3
Ber [7]

Answer:

- i

Step-by-step explanation:

Set up equation.

i {}^{3}  = y

{i}^{2 }  \times i = y

- 1 \times i = y

- i = y

6 0
3 years ago
How to convert 1 1/2
seraphim [82]

Answer:

3/2

Step-by-step explanation:

Step 1

Multiply the denominator by the whole number

2 × 1 = 2

Step 2

Add the answer from Step 1 to the numerator

2 + 1 = 3

Step 3

Write answer from Step 2 over the denominator

3/2

3 0
3 years ago
A. x-int:-0.5,y-int:1<br>B. x-int:0.5,y-int:1<br>C. x-int:-0.5,y-int:-1<br>D. x-int:1,y-int:0.5
hodyreva [135]
The correct answer is:  [D]:  " <span>x-int : 1 ,  y-int:  0.5  " .
_____________________________________________________
Note:
_____________________________________________________
The "x-intercept" refers to the point(s) at which the the graph of a function (which is a "line", in this case) cross(es) the "y-axis".  

In other words, what is (are) the point(s) of the graph at which "x = 0<span>" ?
</span>
By examining the graph, we see that when " x = 0" ; y is equal to:  "1<span>" .
</span>
So; the "x-intercept" is at point:  "(0, 1)" ; or, we can simply say that the 
   "x-intercept" is:  "1" .
_________________________________________________________</span>  Note:
_____________________________________________________
The "y-intercept" refers to the point(s) at which the the graph of a function (which is a line, in this case) cross(es) the "x-axis".  

In other words, what is (are) the point(s) of the graph at which " y = 0 <span>" ?
</span>
By examining the graph, we see that when " y = 0 " ; x  is equal to:  "0.5<span>" .
</span>
So; the "x-intercept" is at point:  "(0.5, 0)" ; or, we can simply say that the 
   "y-intercept" is:  "0.5 " .<span>
______</span>_________________________________________________
This would correspond to:<span>
_______________________________________________________
           Answer choice:  [D]:  </span>" x-int: 1 , y-int: 0.5  " .
_______________________________________________________
     {that is;  The "x-intercept" is: "0" ; and the "y-intercept" is:  "0.5 ".} .
_______________________________________________________
5 0
3 years ago
A circuit starts and ends at different vertices.<br> True<br> False
belka [17]

Answer:

False, a circuit must end in the same spot unless it is an Eurel circuit.

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • 3/5y+5=7 what's the answer to this
    14·1 answer
  • Chris sells books for a commission of $2.60 per book and $50 a month. His salary is determined by the function M=2.60 b+50, wher
    7·1 answer
  • What is the perimeter of this pentagon?
    8·1 answer
  • The X- &amp; Y- coordinates have the same sign?? help me
    9·2 answers
  • 7. You draw a card from a poker deck, replace it, and draw
    10·2 answers
  • 736•(119-166)+726-34
    14·2 answers
  • Resuelve por el perímetro.<br> 5 cm<br> 8 cm
    10·2 answers
  • The graph shown here is the graph of which of the following rational
    8·1 answer
  • A parcel weighs two thousand three hundred and forty grams. An item weighing seven hundred grams is removed from the parcel. Wha
    10·1 answer
  • Write 4.135 as a fraction write f as a fraction don't worry about simplifying
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!