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
ruslelena [56]
3 years ago
15

Fiora starts riding her bike at 20 mi/h. after a while, she slows down to 12 mi/h, and maintains that speed for the rest of the

trip. the whole trip of 70 mi takes her 4.5 h. for what distance did she travel at 20 mi/h?
Physics
2 answers:
hammer [34]3 years ago
3 0
<span>d = r*t

t = hours at 20 mi/hr


20t + 12*(4.5 - t) = 70
8t = 16
t = 2 hours

d at 20 mi/hr = 20*2 = 40 miles

40/20 + 30/12 = 4.5 hours

Fiora travels a total distance of 4.5 hours</span>
Nezavi [6.7K]3 years ago
3 0

Answer : Distance, d = 40 mi.

Explanation :

It is given that,

Fiora starts riding her bike at 20 mi/h. after a while, she slows down to 12 mi/h and maintains that speed for the rest of the trip. the whole trip of 70 mi takes her 4.5 h.

Let for t hours she traveled at 20 mi/h. So, for ( 4.5 - t) h she has traveled with a speed of 12 mi/h.

We know that,

distance covered = speed × time

20 mi/h × t +12 mi/h (4.5 h - t) = 70 mi

t = 2 h

So, the distance covered in 2 h is, d = 20 mi/h × 2 h = 40 mi.

Hence, this is the required solution.

You might be interested in
Plz help!!!!!<br><br><br> Best answer will get<br> B R A I N L I E S T!!!
SVEN [57.7K]
They spill out chemicals into our air that may be bad for our lungs

7 0
3 years ago
Figure 1 shows a wave movement during one second. What is the frequency of the wave
Andreyy89
This is 2 hertz.  You can mark out 2 full wavelengths in the second of time.
4 0
3 years ago
Read 2 more answers
Some cities now implement signal lights designed to specifically apply to _____ rather than motorized vehicles.
dmitriy555 [2]

The correct answer is C; Bicycles.

Further Explanation:

In major cities, in the United States, have implemented signal lights specifically designed for bicycle riders. The riders also have their own designated bike lanes in many large cities. Drivers in vehicles, are to give the right of way to people on bicycles.

Bicycle riders are to follow the same laws and laws specifically for the riders or they can face fines and tickets.

Learn more about bicycle laws at brainly.com/question/8934107

#LearnwithBrainly

7 0
3 years ago
Which officeholders are elected by the electoral college
NikAS [45]

Answer:Electoral Vote

Explanation:i did it before

4 0
2 years ago
Make a
defon

Answer:

Yes, a mixture can be made up of just elements and no compounds. The elements never experiance a chemical interaction and stay only in physical contact with each other.

BRAILIEST PLS I NEED LEVEL UP!

3 0
3 years ago
Other questions:
  • Is there proof of the existence of God and Satan?If so what proof?
    7·1 answer
  • OMG PLZ PLZ HELP!!
    12·2 answers
  • Determine the absolute pressure on the bottom of a swimming pool 29.0 m by 8.2 m whose uniform depth is 1.9 m . express your ans
    14·1 answer
  • Consider a uniform hoop of radius r and mass m rolling without slipping. which is larger, its translational kinetic energy or it
    9·1 answer
  • The Mariana Trench is the deepest ocean trench on. This trench occurs at a plante boundary where
    8·1 answer
  • Low-viscosity lava a. is most often a cool-temperature lava. b. could logically build a composite volcano. c. has low silica con
    14·1 answer
  • The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with an acceleration of -
    5·1 answer
  • Two positive charges of 6.0 x 10^-6 C are separated by 0.50 m. Calculate the force of electrical attraction
    6·1 answer
  • 5. Use of geothermal energy is not is not possible to generate electricity in Nepal​
    9·1 answer
  • Light travels slowest in high density media, faster in lower density media, and fastest in low density media.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!