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
yulyashka [42]
3 years ago
9

Cabrina and Dabney are attending a conference. After the​ conference, Cabrina drives home to Boise at an average speed of 7575 m

iles per hour and Dabney drives home to Portland at an average speed of 6060 miles per hour. If the sum of their driving times is 11.511.5 hours and if the sum of the distances driven is 765765 ​miles, determine the time each woman spent driving home.

Mathematics
2 answers:
kifflom [539]3 years ago
7 0

Answer:

Cabrina's time = 5 hours  

Dabney's time = 6.5 hours

Step-by-step explanation:

The data of the exercise are:

Cabrina speed = 75 mph

Daney speed = 60 mph

The sum of their distance is 765 miles, therefore

Cabrina's distance Dabney's distance = 765

Cabrina's distance = x

Dabney's distance = 765-x

The sum of their times is 11.5 hours, therefore

Cabrina's time Dabneys time = 11.5

Cabrina's time = x / 75

Dabney's time = (765-x) / 60

x / 75 (765-x) / 60 = 11.5

Lowest common denominator of 75 and 60 is 300, therefore we have:

330 * x / 75 300 * (765-x) / 60 = 300 * 11.5

4 * x 5 * (- x 765) = 3450

4 * x - 5 * x 3825 = 3450

x = 375

Replacing:

Cabrina's time = 375/75 = 5 hours took

Dabney's time = (765-375) / 60 = 6.5 hours took

podryga [215]3 years ago
6 0

Step-by-step explanation:

Below is an attachment containing the solution.

You might be interested in
The slope of a vertical line is<br> The slope of a horizontal line is
kvasek [131]
The slope of a horizontal line =0 not undefined the slope of a vertical line= undefined
3 0
2 years ago
If y varies directly as x and k = 8, find x when y = 8<br><br> 1. 1<br> 2. 8<br> 3. 64
aksik [14]

y = kx so x = y/k

if y = 8 and k = 8 then

x = 8/8 = 1

answer

1. 1

8 0
3 years ago
Distance that sound travels through air d varies directly as time t, and d=1,675 ft when t=5 seconds, find t when d=5025ft
Marysya12 [62]
Divide 5025 by 1675 then whatever you get multiply it by 5 that will get you t when d is 5025
5 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST. IM AN EXPERT AND THSI IS STILL HARD. 18+20.
fenix001 [56]

Answer:

38

Step-by-step explanation:

5 0
3 years ago
How do I graph linear equations?
pishuonlain [190]
By using the given pairs e.g (4,1 ) (8,6) on the graph plane
7 0
2 years ago
Read 2 more answers
Other questions:
  • What is 5 13/12 simplified
    9·1 answer
  • 1. The Wall Street Journal reported that bachelor’s degree recipients with majors in business average starting salaries of $53,9
    15·2 answers
  • Which equation is related to 58 = x + 25?
    12·1 answer
  • The area of the parallelogram is 315 square units. What is the height of the parallelogram?
    11·1 answer
  • A rectangular pen for pigs that will enclose a total area of 169 square feet. What is the least amount of fencing that is needed
    7·1 answer
  • Matthew is starting his own landscaping business. Matthew thinks he can
    7·1 answer
  • 15 subtracted from the square of an integer the result is equal to three less than four times the integer find the negative inte
    11·1 answer
  • The bar diagram represents 24 hours in one day and shows a mark at 30%.
    12·2 answers
  • How much times longer is Jupiter’s orbit than earth’s orbit?
    11·1 answer
  • If Florist B increases the cost per rose to $5.20 (plus $25 delivery), but Florist A keeps their price the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!