need an equation distance=4800, speed=x-200, time=(x+2)

Please help!
in Word Problem Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

Distance=speed*time, so 4800=(x-200)(x+2)=x^2-198x-400, x^2-198x-5200=0 (from which x=221.48 or -23.48). The requested equation is in bold print.

(CHECK: (221.48-200)(221.48+2)=4800; (-23.48-200)(-23.48+2)=4800.)

by Top Rated User (1.2m points)

Related questions

1 answer
math equation for speed, time,distance
asked Aug 31, 2011 in Geometry Answers by anonymous | 1.1k views
2 answers
Algebra - Time, Distance, Speed
asked Jan 5, 2017 in Word Problem Answers by anonymous | 642 views
1 answer
speed=distance/time
asked Mar 16, 2014 in Algebra 1 Answers by anonymous | 585 views
1 answer
speed=distance/time
asked Mar 16, 2014 in Algebra 1 Answers by anonymous | 621 views
1 answer
speed=distance/time
asked Mar 16, 2014 in Algebra 1 Answers by anonymous | 588 views
1 answer
Speed distance and time question?! D:
asked Aug 12, 2013 in Other Math Topics by Jules | 732 views
1 answer
How do you find speed of a particle from a distance-time graph?
asked Oct 27, 2011 in Word Problem Answers by anonymous | 721 views
1 answer
4800 is 70% of what number
asked Apr 22, 2014 in Word Problem Answers by anonymous | 1.1k views
1 answer
1625 is what percent of 4800
asked Feb 14, 2014 in Calculus Answers by Steve | 514 views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. Solve 15 -1(12÷4+1)? (4)
  4. 8:4(5+2) (3)
  5. How can i represent 1/3; 3/3; 7/3; 10/3 and 15/3 on a number line? (1)

Most popular tags

87,516 questions
100,279 answers
2,420 comments
732,255 users