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
zubka84 [21]
3 years ago
8

At 9.00 AM, two trains are 715 miles apart traveling toward each other on parallel tracks. If one train is traveling at a rate t

hat is 10 miles per hour faster than the other train and they meet after 5.5 hours, how fast is each train traveling?
Mathematics
1 answer:
prisoha [69]3 years ago
3 0
One train will be travelling at 60 mph, and the other train will be travelling at 70 mph. 70 * 5.5 = 385, 60 * 5.5 = 330. 330 + 385 = 715
You might be interested in
Solve for t : t3 + 4 =-4
Nikolay [14]
-2.6 I think is the correct answer
8 0
3 years ago
Is square root 1-cos^2theta=-sintheta true? if so, in which quadrants does angle theta terminate?
oksano4ka [1.4K]

Yes it is true:

(1 - cos^2 x) = sin^2 x Sqr.(1 - cos^2 x) = sin x and (-sinx) True, since sin x negative. Also, x terminates in quadrant 3 and 4. Hope this is helpful

4 0
2 years ago
Write the equation of the line in slope-intercept form of the statement
Law Incorporation [45]

Answer:

Y= -2x +40

Step-by-step explanation:

6 0
3 years ago
An electronic manufacturing company has determined that the monthly cost of producing x units of its newest stereo is C(x) = 250
SCORPION-xisa [38]

Answer: The monthly marginal profit when 8250 units are produced and sold is 2,427,125 dollars

Step-by-step explanation:

C(x) = 2500 + 10x

D(x) = 60000 - x/1500

Use the demand equation to find the monthly revenue equation.

R(x) = x.D(x) = x(60000 - x/1500) = 60000x - x²/1500

Find the monthly profit equation

P(x) = R(x) - C(x) = 60000x - x²/1500 - (2500 + 10x) =

60000x - x²/1500 - 2500 - 10x = 60000x - x² - 3750000 - 15000x/1500 =

45000x - x² - 3750000/1500

use it to compute the monthly marginal profit for a production level of 8250 units

P(8250) = 45000*8250 - 8250² - 3750000/1500 = 2,427,125

The monthly marginal profit when 8250 units are produced and sold is 2,427,125 dollars

3 0
3 years ago
Read 2 more answers
A line is defined by the equation y = x-6 The line passes through a point whose y-coordinate is 0. What is the x-
Yakvenalex [24]

Answer:X=9

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • 2.96 as a mixed number or fraction in simplest form
    12·2 answers
  • Can someone help please
    11·1 answer
  • 12)
    14·1 answer
  • What is .368 written in expanded form?
    15·2 answers
  • The local museum had 10,000 visitors in 1995.
    14·1 answer
  • You created a blog and after 2 weeks you get your first subscriber. The number of subscribers grows quickly, quadrupling each we
    5·1 answer
  • What is the smallest whole number that can be multiplied by 300 such that the product is a perfect cube?
    7·2 answers
  • Solve the system using elimination. x − 4y = 4 and -3x − 4y = 12
    14·1 answer
  • Which of the following expressions results in 0 when evaluated at x = 4?
    7·1 answer
  • Select the correct answer:
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!