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
aleksley [76]
3 years ago
9

the sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find

the speeds of each.
Mathematics
1 answer:
Allushta [10]3 years ago
6 0

Answer: 1st train = 364 mph, 2nd train = 356.2


Step-by-step explanation:

Train 1: x + 7.8

Train 2: x

Train 1 + Train 2 = Sum

x + 7.8 +     x      = 720.2

           7.8 + 2x = 720.2

                    2x = 712.4

                      x = 356.2


Train 1: x + 7.8

 = 356.2 + 7.8

 = 364

You might be interested in
What is the value of B Image below
Gnesinka [82]
It is 61 degrees bec u j add them then subrteact that by 189
4 0
3 years ago
Read 2 more answers
PLEASE ANSWER IF YOU CAN!!
Andrew [12]

Answer:

the surface area of the decoration is 31.5

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Should be easy points!
Andru [333]

Answer:

Let x represent the number from the sentence.

Step-by-step explanation:

2(x) + 2(1/x) = 20/3

2x + 2/x = 20/3

multiply both sides of the equation by 3x

6x + 6 = 20x

6x - 20x + 6 = 0

6x - 18x - 2x + 6 = 0

6x(x-3 -2(x-3) = 0

(6x-2 = 0 or x-3 = 0

6x = 2 or x = 3

x = 2/6

x = 1/3

Since x represented the number

Therefore x = 1/3 or 3

4 0
2 years ago
LIVE
Serga [27]

Answer:

15m+80 would be the correct equation

3 0
3 years ago
Read 2 more answers
Ron is building a shed in the shape of a right circular cylinder. If the height of the shed is 14 feet and the radius is 72 inch
Zinaida [17]

Answer:

D) 496.25 ft³

Step-by-step explanation:

V = πr²h

3.14 × 14² × 72

5 0
3 years ago
Other questions:
  • In 2016, the mean number of wins for teams in Major League Baseball was 81 wins with a standard deviation of 10.7 wins. (a) The
    7·1 answer
  • Right triangle ABC and right triangle ACD overlap as shown below. Angle DAC measures 20 degrees and angel BCA measures 30 degree
    14·1 answer
  • Find two consecutive whole numbers that 41 lies between.
    6·2 answers
  • The graphs below have the same shape. What is the equation of the graph of g(x)? g(x) V -5 5 O g( A. g(x) = x2 - 2 B. g(x) = (x
    9·2 answers
  • Bryson is painting kitchen stools. Each stool requires 1 1/2 liters of paint. Bryson has 20 liters of paint, How many stool will
    7·1 answer
  • Tell me the answer please. Give me a short answer and a step-by-step explanation.
    6·2 answers
  • Please answer this...​
    15·1 answer
  • 14. AMKL is an isosceles triangle with MK ML.If MK = 7x - 15, KL = 4x - 6, and ML = 10X - 12, find x and the measure of each sid
    8·1 answer
  • I still dont understand slope can someone help?
    6·2 answers
  • Anita needs 140 cubes to make a model. The figure shows the number of cubes in a box How many boxes of cubes does Anita need to
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!