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
Lyrx [107]
3 years ago
14

Please help ty! I added extra points.

Mathematics
1 answer:
shepuryov [24]3 years ago
8 0
<h3>Charlene left city A at 10: 10 AM</h3>

<em><u>Solution:</u></em>

Given that,

At 10 a.m., Hillary left City A and drove at an average speed of 120 km/h

Charlene drove at an average speed of 144 km/h and took 50 minutes.

She arrived at City B at the same time as Hillary

Their distance is same

Find the ratio of speed

120 : 144

Reduce to lowest term

Hillary : charlne = 5 : 6

Find the ratio of time:

Since, speed and time are inversely propotional

Hillary : charlne = 6 : 5

Let time taken by Hiliary be 6t

Let time taken by charlene be 5t

Given that, Charlene took 50 minutes

Therefore,

5t = 50

t = 10

Thus,

time taken by Hiliary = 6t = 6(10) = 60

Thus hiliary took 60 minutes to reach

<em><u>Find the time Charlene left City A</u></em>

At 10 a.m., Hillary left City A

Difference between both their time = 60 - 50 = 10 minutes

Thus, Hilairy left city A = 10 am + 10 minutes = 10 : 10 a.m

Thus, Hillary left city A at 10: 10 AM

You might be interested in
What are values in a 7 digit number
Montano1993 [528]
Ones, tens, hundreds,thousands, ten thousands, hundred thousands, millions
7 0
3 years ago
Betty had $40 in her pocket. She bought 12 identical bags of popcorn. Betty was left with $10 after buying the popcorn. What was
BartSMP [9]
If she started with $40 and ended up with $10, that means she must've used $30. Since the popcorn bags were all identical and she bought 12, you can divide 30 by 12 which gives you 2.5. 

The answer is $2.50.
6 0
3 years ago
Read 2 more answers
How long must $542 be invested at a rate of 7 percent to earn a 303.52 interest
Marizza181 [45]
How long must $542 be invested at a rate of 7 percent to earn a 303.52 interest

5 0
3 years ago
Which of the following pairs of functions are inverses of each other ​
Ghella [55]

Option (A) represents the function and its inverse of a function option (A) is correct.

<h3>What is a function?</h3>

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

We have a function and inverse of a function shown in the picture.

Checking for option (A):

\rm f(x) = \dfrac{x}{4}+10 \ \ \ and \  \ \ g(x)  = 4x -10

Taking f(x):

\rm f(x) = \dfrac{x}{4}+10

To find the inverse of a function interchange the x and y variables:

f(x) → x

x  → g(x)

\rm x = \dfrac{g(x)}{4}+10

Solving:

4x = g(x) + 10

g(x) = 4x - 10

Similarly, we can find the inverse of a function.

Thus, option (A) represents the function and its inverse of a function option (A) is correct.

Learn more about the function here:

brainly.com/question/5245372

#SPJ1

8 0
2 years ago
Read 2 more answers
Identify the domain and range of the relation:<br> (-5,-3), (-2,1), (1,4), (2,5)
jonny [76]

Domain is the x-coordinate and range is the y - coordinate

\therefore \: domain =  \{ - 5, \:  - 2, \: 1, \: 2 \} \\  \\ \&\: range =  \{  - 3, \: 1, \: 4, \: 5\}

3 0
3 years ago
Other questions:
  • On the field trip, Abbey, Bethany, Christine, and Darcy bought a total of 4 hot dogs and 3 sodas, which cost the girls $17.00. E
    9·1 answer
  • What is the scale factor of the dilation?<br>1/3<br>2/3<br>3/2 3/1<br><br>​
    15·1 answer
  • Let Angle w be an acute angle. Use a calculator to approximate the me
    14·1 answer
  • Write each fraction as a unit fraction<br> 12/84<br> 13/143<br> 23/138
    12·1 answer
  • Graph y= –3x+4 k12<br> im practing for a test can i get this in picture form
    8·1 answer
  • If two sides of a triangle measurement 8cm 12cm what is the range of the third side
    8·1 answer
  • How many times does 20 go to 140
    6·2 answers
  • A semi circle will be rotated 360 about its straight edge. What three dimensional solid will be created as a result of the rotat
    7·2 answers
  • In a triangle ABC if ∠A= 72° and ∠B= 63° find ∠C​
    15·2 answers
  • 6
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!