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
photoshop1234 [79]
3 years ago
14

Bharat and ingrid leave their building at the same time on their bikes and travel in opposite directions. If bharat's speed is 1

2 kilometers per hour and the Ingrid's speed is 14 kilometers per hour, how long will it take until they are 78 kilometers apart ?
Mathematics
1 answer:
yanalaym [24]3 years ago
6 0

Answer:

3 hours

Step-by-step explanation:

speed of Bharat = 12kilometers / hour

speed of Ingrid=14 kilometers / hour

For this problem we'll be using formula relating time, distance and speed.i.e

Distance = speed x time

Suppose Bharat is riding at a distance of 'b' kilometers, therefore time taken by him will be:

Time = distance/ speed

Time= b/12 hours.

Also, Ingrid can ride the distance at this time with speed of 14km/hr

The distance would be,

Distance = speed x time

Distance = 14 x (b/12) => 14b/12

Distance= 7b/6

Let 'd_{b}' be the distance that Bharat have covered after time 't'

therefore, d_{b} = 12 x t

Let 'd_{i} ' be the distance that Ingrid have covered after time 't'

therefore, d_{i} = 14 x t

In order to find the time when they are 78 kilometers apart, we will add d_{i}  and d_{b}, because they are travelling in opposite direction creating distance between them.

So,

d_{i} + d_{b} = 78

( 14 x t) + (12 x t) =78

14t + 12t =78

26t= 78

t= 78/26

t= 3hours.

thus, it will take 3 hours  until they are 78 kilometers apart

You might be interested in
Help please please !!!!!!!
lyudmila [28]
In each case, you can use the second equation to create an expression for y that will substitute into the first equation. Then you can write the result in standard form and use any of several means to find the number of solutions.

System A
  x² + (-x/2)² = 17
  x² = 17/(5/4) = 13.6
  x = ±√13.6 . . . . 2 real solutions

System B
  -6x +5 = x² -7x +10
  x² -x +5 = 0
The discriminant is ...
  D = (-1)²-4(1)(5) = -20 . . . . 0 real solutions

System C
  y = 8x +17 = -2x² +9
  2x² +8x +8 = 0
  2(x+2)² = 0
  x = -2 . . . . 1 real solution
7 0
2 years ago
Leslie determined that the system of equations below has infinitely many solutions. Is she correct?
Nookie1986 [14]

Answer:

Leslie determined that the system of equations below has infinitely many solutions. Is she correct?  

x=4y-4

2x-8y=-24

A.Yes, Leslie is correct.

B. No, the solution is (-8,-24)

C. No, the solution is (0,-16)

<u>D. No, the system of equations has no solution. </u>

Step-by-step explanation:

you have to solve they as a pair of simultaneous equations and their is no solutions

if you need a more detailed explanation post the question again and i will write a detailed explanation

plz mark as brainliest


6 0
3 years ago
Read 2 more answers
a computer store builds custom computers by allowing customers to choose 1 of 4 different CPU's. 1 of 8 hard drives, and 1 of 3
Lelechka [254]
You multiply the possibilities.

4*8*3 = 96 possibilities.
3 0
2 years ago
Read 2 more answers
CAN SOMEONE HELP ME ASP ITS IS DUE IN 10 MINUTES?!?!?
e-lub [12.9K]

Answer:

x = 36

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Which could be the area of one face of the triangular prism? Check all that apply
Sever21 [200]

Area of rectangles = Length x width.

Area of triangles = 1/2 x base x height.

1 face is 12 x 10 = 120 square units

1 face is 12 x 8 = 96 square units

1 face is 12 x 6 = 72 square units

And 2 faces are 1/2 x 8 x 6  = 24 square units

Answers are 24 , 72 and 96 square units.

5 0
3 years ago
Other questions:
  • Melanies blue notebook cover is 20 centimeters by 30 centimeters. She has a sticker for each letter in her name. Each sticker is
    14·1 answer
  • 2sin^2 2x=2<br><br> In the domain [0, 2pi)
    13·1 answer
  • What it the angle measure ?
    7·1 answer
  • The distance traveled by a car at a constant rate is proportional to the time spent driving. In the equation d = 45t, d represen
    8·1 answer
  • Abeela bought 1 3/8 pounds of cheese what is the weight of the cheese as a decimal number ?
    11·2 answers
  • How to write 8% as ratio in simplest form
    7·1 answer
  • Pythogorean theorem ​
    9·1 answer
  • Solve the equation<br> 45 = 3(x + 1)
    13·2 answers
  • PLEASE HELP!!!!!!!!!!!!!! DDDD:<br> Please answer correctly!
    8·2 answers
  • Ron cycles 12Km due west and then 9Km due north. Find the shortest distance covered by him to reach his starting point?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!