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
creativ13 [48]
4 years ago
14

Two trains leave a city at the same time. One train goes west at a constant rate of 60 mph. The other goe east at a rate of 50 m

ph. How long will it take the trains to be 550 miles apart
A) 5 hours

B) 7 hours

C) 9 hours

D) 11 hours
Mathematics
1 answer:
GuDViN [60]4 years ago
8 0

Answer:

5 hours.

Step-by-step explanation:

Combined speed of the trains = 50 + 60 = 110 mph.  They are increasing the distance between them at 110 mph.

Therefore  the time when they are 550 miles apart  is distance / speed

= 550/110 = 5 hours.

You might be interested in
Y’all what’s this I’m so confused help
Snowcat [4.5K]

Answer:

x = 66

Step-by-step explanation:

√(x - 2) + 3 = 11

Subtract 3 from both sides:  √(x - 2) = 8

Square both sides:                   x - 2 = 64

Add 2 to both sides:                      x = 66

8 0
3 years ago
Match the concept with its definition and characteristics. i. A set of instructions (codes) that perform a specific task. ii. A
kogti [31]

First definition matches with expression, second matches with equation ,third matches with algorithm and fourth matches with equation.

Given  four definitions of equation, expression, algorithm but mixed.

We have to match the definitions with appropriate term.

We know that expression is a combination of numbers, symbols, fraction, coefficients, indeterminants mostly not found in equal to form. It exhibits a behaviour only.

Algorithm is a computer programming to do a specific task in a predetermined way.

Equation is a relationship between two variables expressed in equal to form. In this we have to put the value of variables and the equation gives us a value.

Hence  First definition matches with expression, second matches with equation ,third matches with algorithm and fourth matches with equation.

Learn more about algorithm at brainly.com/question/13800096

#SPJ4

7 0
2 years ago
A retailer allows 15% discount on the Marked price of an electric fan. If a customer pays Rs 2244 with 10% VAT,find the Marked P
Alona [7]

Answer:

2400

Step-by-step explanation:

2244 is the final price. it includes the VAT based on the actual sale price. and that is then actually 15% lower than the originally marked price.

so, let's calculate backwards :

2244 = 100% sale price + 10% VAT = 110%

1% = 2244 / 110 = 20.40

100% (actual sale price) = 20.40×100 = 2040

now, because of the 15% discount, these 2040 are only 85% of the originally marked price.

2040 = 85%

1% = 2040 / 85 = 24.00

100% (the original marked price) = 24×100 = 2400

5 0
3 years ago
Which is in an equation of the line through (0,0) and (-8,-5)?
Lina20 [59]

Step-by-step explanation:

Since the first coordinates are both (0,0) it implies that the line passes through the origin.

The slope of the line is therefore 5/8

The equation:

y-0=5/8(x-0)

y=5/8x

4 0
3 years ago
Solve by substitution 9x+y=21, -x-3=y
VashaNatasha [74]

Answer:

point form: (3,-6)

equation form: x=3, y=-6

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • A car purchased for $34,000 is expected to lose value, or depreciate, at a rate of 6% per year. Using x for years and y for the
    10·1 answer
  • Factor 2x^2+4x+18 !!!!!
    8·2 answers
  • Assume that five years ago you bought a 5% coupon bond that matures 10 years from today. The yield to maturity was 5% when you b
    11·1 answer
  • How is statement B related to statement A?
    15·1 answer
  • Sadie and Connor both play soccer. Connor scored 2 times as many goals as Sadie. Together they scored 9 goals. Could Sadie have
    5·2 answers
  • Select the recursive rule for the sequence. Then write the next 3 terms of the sequence.
    15·1 answer
  • Please help me please please
    12·2 answers
  • Which is the proportional relationship for this graph?
    6·1 answer
  • Please help fill in the blanks, better with explanation but optional
    11·2 answers
  • More than 200 universities in the United States and many more worldwide have sport management programs. Approximately how many a
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!