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
NemiM [27]
3 years ago
11

It takes 40 min for a bus to cover 36 miles. A car travels 1.4 times faster. When will they meet if they started 36 miles apart

and simultaneously move towards each other?
If they were moving in opposite directions the biker's speed is ___ mph and the walker's speed is ___ mph
Mathematics
1 answer:
Dmitrij [34]3 years ago
6 0

we know that

speed=distance/time

It takes 40 min for a bus to cover 36 miles

then

speed of the bus=distance/time--------> 36/40-------> 0.9 miles/min

speed of the car=1.4*speed of the bus-----> 1.4*0.9----> 1.26 miles/min

For time=t

bus

t=distance/speed--------> t=x/0.9------> equation 1

car

t=distance/speed--------> t=(36-x)/1.26-----> equation 2

equate equation 1 and equation 2

x/0.9=(36-x)/1.26-----> 1.26x=0.9*(36-x)-----> 1.26x=32.4-0.9x

1.26x+0.9x=32.4------> x=32.4/2.16-------> x=15 miles

equation 1

t=x/0.9------> 15/0.9------> t=16.67 min

the answer is

they will meet at the time 16.67 minutes

You might be interested in
What is... X/2 - 13 = 1
kow [346]
X ÷ 2 - 13 = 1
Write the division as a fraction
\frac{1}{2}x - 13 = 1
Multiple both sides of the equation by 2
2 \times  \frac{1}{2}x  \times  - 2 \times 13 = 12
Reduce the number with greatest common divisor 2
x - 2 \times 3 = 2
Multiply the numbers
- 2 \times 13
Then u will have
x - 26 = 2
Move constant to the right by adding its opposite sides
x - 26 + 26 = 2 + 26
Eliminate the opposites
- 26 + 26
Then you have
x = 2 + 26
Add the numbers
x = 28

5 0
3 years ago
The sum total of the angles in a triangle is equal to______degrees
Lynna [10]
The sum total of the angles in a triangle is equal to 180° degrees.
5 0
3 years ago
Read 2 more answers
Brad says that if a second number is 125% of the first number than the second number must be 75% of the second number is he corr
elena-s [515]

Answer:

Incorrect.

Step-by-step explanation:

Let, the first number is x, and the second number is y. Given, the second number is 125% of the first number. So, the equation will be

y = 1.25 x

Or, y= 5/4x

Now, multiplying it with 4/5, we get, x= 4/5y

Or, x= 0.80 y

But, Brad is saying the first number must be 75% of the second number. But here we see that the first number is 80% of the second number. That's why Brad is incorrect.

5 0
3 years ago
What is 2/5 v + 3/4 = 2/3x² as a sentence
Bond [772]

The representation of the equation given in the task content; 2/5 v + 3/4 = 2/3x² as a s sentence is; The sum of Two-fifths of a number, v and quarters is equal to two-thirds of the square of the number x.

<h3>What is the representation of the equation as given in the task content?</h3>

It follows from the convention that the following fractions can be named as follows;

  • 2/5 means two-fifths.
  • 3/4 means three-quarters.
  • 2/3 means two-thirds.

Hence, it follows from the iterations above and how they relate to the equation given in the task content that the representation is; The sum of Two-fifths of a number, v and quarters is equal to two-thirds of the square of the number x.

Read more on equations as words;

brainly.com/question/21405634

#SPJ1

8 0
2 years ago
Four members from a ​"55"person committee are to be selected randomly to serve as​ chairperson, vice-chairperson,​ secretary, an
liq [111]

Answer:

8,185,320 different leadership structures

Step-by-step explanation:

Since the order at which the members of the committee are chosen matters, this is a permutation of 4 out 55 people and it is given by:

n=\frac{55!}{(55-4)!}=55*54*53*52 \\\\n=8,185,320

8,185,320 different leadership structures are​ possible.

3 0
3 years ago
Other questions:
  • Molly ran 2/3 of a mile in 8 minuets. How long will it take here to run one mile?
    8·1 answer
  • What is the only solution of 2x^+8=x^-16
    9·2 answers
  • Help me please and give the right answer
    11·2 answers
  • Find the quotient and completely simplify the radical expression √72÷√6​
    9·1 answer
  • 4, 3, 4, 5, 6, 6, 8, 4 what is the mean absolute deviation for the data. Show your work.
    6·2 answers
  • Please answer with steps!
    13·1 answer
  • 1 Evaluate the expression. r3 - 2s if r = 5 and s = 4​
    6·2 answers
  • After you have the system all lined up, what do you want to look for or create?
    10·1 answer
  • A political party wishes to estimate the proportion of voters that support the party in a particular state. The party will poll
    5·1 answer
  • Determine the value of y, if x is 4.<br> Y=|x-7|
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!