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
Bingel [31]
3 years ago
12

Solve the problem. The formula d = rt gives the distance traveled in time t at rate r. If a bicyclist rides for 2.3 hours and tr

avels 41 miles, what was her average speed ?
Question options:

a: 38.7 miles per hour

b: 5.6 miles per hour

c: 17.83 miles per hour

d: 9.43 miles per hour
Mathematics
1 answer:
Contact [7]3 years ago
4 0

Answer:

17.83

Step-by-step explanation:

d = r*t

d = 41 miles

t = 2.3 hours

r = ??

d = rt            Substitute

41 = r * 2.3   Divide by 2.3

41 / 2.3 = r   Switch sides

r = 41/2.3

r = 17.83 mph  Answer


You might be interested in
A piston rises to 5 cm and falls to 3 cm in such a way that it returns to the maximal height three times every two seconds. If w
sveticcg [70]

Answer:

(1 cm)cos3πt

Step-by-step explanation:

Since the piston starts at its maximal height and returns to its maximal height three times evert 2 seconds, it is modelled by a cosine functions, since a cosine function starts at its maximum point. So, its height h = Acos2πft

where A = amplitude of the oscillation and f = frequency of oscillation and t = time of propagation of oscillation.

Now, since the piston rises in such a way that it returns to the maximal height three times every two seconds, its frequency, f = number of oscillations/time taken for oscillation where number of oscillations = 3 and time taken for oscillations  = 2 s

So, f = 3/2 s =1.5 /s = 1.5 Hz

Also, since the the piston moves between 3 cm and 5 cm, the distance between its maximum displacement(crest) of 5 cm and minimum displacement(trough) of 3 cm is H = 5 cm - 3 cm = 2 cm. So its amplitude, A = H/2 = 2 cm/2 = 1 cm

h = Acos2πft

= (1 cm)cos2π(1.5Hz)t

= (1 cm)cos3πt

7 0
3 years ago
If he starts at 1 and jumps 3 units to the right, then where is he on the number line? How far away from zero is he?
Ilya [14]

Answer:

If you mean he starts at 1 on the Y axis (vertical line), then the answer is (1, 3). If you mean he starts at 1 on the X axis (horizontal line), then the answer is (0, 4)

3 0
3 years ago
Read 2 more answers
All swimming equipment is on sale with a 30% discount. A snorkeling set regularly sells
kupik [55]

Answer:

15

Step-by-step explanation:

50 * .30=15

4 0
3 years ago
A florist has 49 red roses and 63 white roses. The florist wants to put an equal number of red roses in each centerpiece, along
RideAnS [48]
7..
49 can be equally divided by seven, which means there would be 9 red roses in each center piece. And 63 can be equally divided by 7 which means there would by 7 white roses in each center piece.
hope this helps
5 0
3 years ago
What is the image of the point (9,7) after a rotation of 180° counterclockwise
NeX [460]

Answer:

(-9,-7)

Step-by-step explanation:

(x,y)—>(-x,-y)

(9,7)—>(-(9),-(7))=(-9,-7)

5 0
3 years ago
Other questions:
  • PLZ HELP WILL GIVE BRAINLIEST!!!!! AND 20 POINTS!!!!!!!!!!!!!!
    7·2 answers
  • What is cos^{-1} (0.393) [/tex]
    6·1 answer
  • Determine how much the bill will be if there are 50 text messages
    6·1 answer
  • Caleb and Sergio stacked boxes on a shelf. Caleb lifted 14 boxes and Sergio lifted 12 boxes. The boxes that Sergio lifted each w
    12·1 answer
  • I think of a number , multiply it by 3, add 4 and square the result
    7·2 answers
  • Please help it’s urgent multiple choice
    10·1 answer
  • Alexander and Jo live 5 miles apart. They decide to leave their homes at 3 p.M. And travel toward each other. If Alexander bikes
    9·1 answer
  • A political scientist wants to know how college students feel about the Social Security system. She obtains a list of the 3456 u
    9·1 answer
  • How many moles are present in 4.51x1015 atoms of Aluminum (Al)?
    15·1 answer
  • Shawn left a 15% tip<br> for a meal that cost<br> him $32.45.<br> SHOW WORKKK
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!