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
nataly862011 [7]
3 years ago
9

Two jet planes simultaneously started travelling in opposite directions from the same airport. Four hours later they were 3800 m

iles apart. If one plane traveled 80 miles per hour faster than the other, what was the speed of each plane?A tourist starts to walk up a mountain path that is 31 miles long at the rate of 4 miles per hour. After walking for a while, he gets tired and decides to get a taxi. The taxi gets him to the top travelling at a constant speed of 50 mph. If the tourist reaches the destination 2 hours after he started, what distance does he have to pay the cab driver for?
Mathematics
1 answer:
alexira [117]3 years ago
8 0

Answer:

Step-by-step explanation:

let the speed of one plane=x

speed of other plane=x+80

time=4 hrs

then 4x+4(x+80)=3800

4x+4x+320=3800

8x=3800-320

or 8x=3480

x=435

speed of one plane=435 m/h

speed of other plane=435+80=515 m/h

2.

Let he walks x hrs

then he take a taxi for 2-x hrs

4x+(2-x)50=31

4x+100-50x=31

-46x=-69

x=\frac{-69}{-46}=\frac{3}{2}

so he walks 3/2 hrs=1.5 hrs

travels by taxi=2-1.5=0.5 hrs

distance traveled by taxi=0.5×50=25 miles

You might be interested in
Malcolm solves w2-3w=350​
stiv31 [10]

Answer:

20.26832436,-17.26832437

5 0
3 years ago
5 times a number is 110 less than 7 times that number
Nitella [24]

Answer:

55

Step-by-step explanation:

let the number=x

5x=7x-110

7x-5x=110

2x=110

x=110/2=55

3 0
3 years ago
What is 4,967 divided by 68 with a remainder no decimals
Sonja [21]
The answer would be 73 remainder 0 if rounded to one decimal place
5 0
3 years ago
Read 2 more answers
PLS HELP TIMED QUIZ The size of a television screen is given as the length of the diagonal. If a television is advertised as hav
grin007 [14]

Answer:

D.24

Pythagorean states:

hypotenuse^2 = side1^2 + side2^2

30^2 = 18^2 + side2^2

side2^2 = 30^2 - 18^2

side2^2 = 900 - 324

side2^2 = 576

side2 = sqr root 576

side2 = 24

Source: http://www.1728.org/pythgorn.htm

Step-by-step explanation:

5 0
3 years ago
Find the difference of the following sequence: -7, -9, -11...<br><br> Difference: ___
Anna007 [38]
Hmmmmmm I think I know the answer to this
3 0
3 years ago
Read 2 more answers
Other questions:
  • Cheyenne needs to cut a piece of paper so that she has exactly 1/3 of it. If the length of the paper is 11 inches, how long will
    13·2 answers
  • Algebra 2 Questions:
    8·1 answer
  • (3x^2+11x+4)+(-5x+x^2-13) standard form
    15·1 answer
  • 9 1/6 - 6 2/3 please help its urgent.
    8·2 answers
  • 5. A store owner has 12.58 kg of candy. If she puts the candy
    7·1 answer
  • Ray paid $26.25 for 7.5 gallons of gasoline. What is the unit rate of gasoline in dollars per gallon
    12·1 answer
  • Which relation describes a function?
    9·2 answers
  • Find the sum of 12th term of the following AP series 7,11 and 15.<br>​
    5·2 answers
  • Heres is an inequality -3x&gt;18
    9·1 answer
  • At a 200 units of output, total cost is $50,000 and total variable cost is $35,000. What does
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!