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
kobusy [5.1K]
2 years ago
13

Leila drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 10 hours. When Leila drov

e home, there was no traffic and the trip only took 7 hours. If her average rate was 18 miles per hour faster on the trip home, how far away does Leila live from the mountains?
Physics
1 answer:
9966 [12]2 years ago
5 0

Answer:

420 miles

Explanation:

Since distance is speed times time taken, you get two conditions:

\left \{ {{d=v*10} \atop {d=(v+18)*7}} \right.

Easiest way to solve it is to set the two condition equal - she's coming and going from the same place after all - and you get 10v=(v+18)*7\\10v=7v+3*6*7\\3v=3*6*7 \\v=42 Replace in either equation and you'll get d=420

You might be interested in
A small bug is lying resting when nine ants simultaneously ambush it and begin pulling it in different directions. They are each
xxMikexx [17]

Answer: The bug will remain motionless

Explanation:

According to Newton's first Law of Motion (sometimes called Law of Inertia):

<em>An object at rest or describing a uniform straight line motion (moving at constant velocity), will remain at rest or moving unless an external force is applied to it and changes its state of rest or motion. </em>

In other words:

An object or body will keep its state of motion until an external force changes its state

This means that objects tend to remain in its state of motion, and is the definition of the inertia, as well.

In addition, according to his law, an object in rest can be in equilibrium (net force equals to zero), and a moving object can also be in equilibrium, as long as it keeps a constant velocity.

<h2>This is why the bug, which is at rest will remain at rest, although the ants are simultaneously pulling it in different directions, since the resultant of all these forces is zero.</h2>
4 0
3 years ago
The recommended adult dose of elixophyllin, a drug used to treat asthma, is 6.00 mg/kg of body mass. calculate the dose in milli
andreev551 [17]

For a 166-lb person, a dose of 452 milligrams is prescribed to treat asthma.

<h3>How would you define asthma?</h3>

Lung damage is a side effect of asthma. Repeated episodes of coughing, dyspnea, chest tightness, and wheezing are also brought on by it. By taking medication and avoiding the triggers that can set off an attack, asthma can be managed. Outdoor allergens, such as pollen from grass, trees, and weeds, are common asthma triggers. Different allergens and irritants might function as triggers for different people. Dust mites, cockroaches, mold, and pet dander are examples of indoor allergies. Air irritants like smoke, chemical fumes, and powerful scents.

Mass = 166 lb×(453.59 g/1 lb)×(1kg/1000g)=75.30 kg

Dose = 75.30 kg ×(6.00 mg/1 kg)=452 mg

Elixophyllin has a 452 mg dose for a 166 lb person with asthma.

To know more about asthma, click here:

brainly.com/question/5009040

#SPJ4

8 0
1 year ago
A straight line with a negative slope on a velocity-time graph indicates which of the following?
podryga [215]

Answer:

A

Explanation:

Straight line with a negative slope

On a velocity_time graph

5 0
3 years ago
Your cat "Ms." (mass 7.00 {\rm kg}) is trying to make it to the top of a frictionless ramp 2.00 {\rm m} long and inclined upward
lbvjy [14]

Answer:

Final velocity at the top of the ramp is 6.58m/s

Explanation

Check the attachment

4 0
3 years ago
Please help me with this please <br><br> I’ll mark you Brainly
ivolga24 [154]
I think it is option (C).

If the answer is helpful then mark me as brainly.
4 0
2 years ago
Other questions:
  • An incredible amount of electrical energy passes down the funnel of a large tornado every second. Measurements taken in Oklahoma
    6·1 answer
  • Someone please help me with this physics!
    10·1 answer
  • Which biological molecule contains a large amount of the element nitrogen
    15·1 answer
  • What is the difference between a heliocentric model of the solar system and a geocentric model?
    13·2 answers
  • Which of the following will cause an increase in gas pressure in a closed container?
    5·1 answer
  • A 22g bullet traveling 210 m/s penetrates a 2.0kg block of wood and emerges going 150m/s. If the block were stationary on a fric
    15·1 answer
  • A sailboat took 25 hours to cover 1/4 of a journey. Then, it
    11·1 answer
  • Please help I’ll give brainliest
    15·1 answer
  • Which of the following types of waves can transmit only through matter? Select all that apply.
    6·1 answer
  • What happens to temperature of a substance during phase change
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!