how do you solve 1.7f + 1.3s = 37.9 and 5.6f + 5.4s = 147.2

system of equations
in Algebra 1 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

line 1: 1.7x +1.3y=37.9   or y=(37.9-1.7x)/1.3=

line 2: 5.6x +4.5y=147.2

5.6x +(4.5/1.3)*(37.9 -1.7x)=147.2

(4.5/1.3)=3.4615384

5.6x -5.8846x +131.1923=147.2

-0.2846x=(147.2 -131.1923)=16.008

x=-16.008/0.2846=-56.246
by

Related questions

1 answer
1.7f + 1.3s+37.9 and 5.6f + 5.4s=147.2
asked Mar 7, 2012 in Algebra 1 Answers by anonymous | 1.1k views
1 answer
How do you solve r^5s(5r^4s^2+r^3s^5?
asked Mar 12, 2013 in Algebra 1 Answers by anonymous | 689 views
1 answer
L^-1((4s^2-3s+5)/((s-1)(s^2-3s+2)))
asked Apr 1, 2013 in Calculus Answers by anonymous | 705 views
0 answers
What is 15+3r-2+4s+2r-3s simplified?
asked Mar 6, 2013 in Pre-Algebra Answers by anonymous | 589 views
1 answer
4s + 3(2-3s) ≤ 5(2-s)
asked Apr 3, 2012 in Algebra 2 Answers by anonymous | 1.4k views
0 answers
f-4=6f=26, solve for f
asked Nov 3, 2012 in Pre-Algebra Answers by anonymous | 1.2k views
2 answers
6f + 9n if f=-8 and n=-8
asked Sep 1, 2013 in Algebra 2 Answers by anonymous | 752 views
1 answer
what is 7f+4
asked Apr 23, 2013 in Algebra 1 Answers by anonymous | 665 views
1 answer
2f(5f-2)-10(f-3f+6)=-8f(f+4)+4(2f^2-7f)
asked Mar 20, 2013 in Algebra 1 Answers by anonymous | 1.3k views
1 answer
(FF + 7F + 10) / (F + 2) =
asked Feb 6, 2013 in Algebra 2 Answers by anonymous | 683 views
1 answer
6f+3-4f+5+10f?
asked Dec 12, 2012 in Pre-Algebra Answers by anonymous | 922 views
1 answer
what is -8=6f=-5
asked Nov 8, 2012 in Algebra 1 Answers by chicknocy123 Level 1 User (120 points) | 646 views
0 answers
(7f+3)(-4)
asked Oct 18, 2012 in Algebra 1 Answers by anonymous | 554 views
1 answer
7f-19=4f+41 what is f
asked Oct 11, 2012 in Algebra 1 Answers by anonymous | 933 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
732,376 users