If 5o+6b=205 and 7o+8b=276 then how do you find the value of of o?
2006-12-17 07:59:41 · 8 answers · asked by Anonymous in Education & Reference ➔ Homework Help
5o+6B=205
7o+8B=276
5o= -6B+205
o= -6/5B+41
8B= -7o+276
B= -7/8o+34.5
o= -6/5(-7/8o+34.5)+41
o=1.05o-41.4+41
o=1.05o-.4
-0.05o=.04
o=-0.8
Or I could be completely wrong.
2006-12-17 08:01:24 · answer #1 · answered by Rosemary Anna Bell Smith The 3rd 2 · 0⤊ 1⤋
Kinda tough to explain typing but... I would solve for "b" in the second equation, giving you b=(276-7o)/8 You then substitute that into the firs equation, giving you 5o+6[(276-7o)/8]=205 Then work that problem out and you will get your "o". Good luck!
2006-12-17 08:06:50 · answer #2 · answered by Nick H 1 · 0⤊ 0⤋
solve for o in one equation - then substitute that into the second equation
5o=205-6b
o=41- 6/5b
then
7(41-6/5b) + 8b = 276
now you only have b - solve for b
then you can solve for o
2006-12-17 08:03:56 · answer #3 · answered by tomkat1528 5 · 0⤊ 0⤋
multiply the first equation by -7 and the second equation by 5 then the "o"'s will cancel out
make sure you multiply both sides by either -7 or 5
after multiplying add the b's and the other side then just multiply
after getting that answer plug that number in for the o and solve from there
2006-12-17 08:04:18 · answer #4 · answered by j9590 2 · 0⤊ 0⤋
solve for o in the first equation (205 - 6b)/5 and replace in the second equation solving for b which would give you b= 27.5 Then you replace 27.5 in any equation and solve for o which would give you o=8
2006-12-17 08:16:24 · answer #5 · answered by Anonymous · 0⤊ 0⤋
i imagine your answer is incorrect.. i have been given 11.6 and that i discussed somebody else with the same answer : (4x+3) / 16^2 - 9) = a million/5 =>5(4x+3) = a million( 256-9) =>20x + 15 = 247 =>20x = 247 - 15 => x = 232/20 => x = 11.6 desire it helps..
2016-11-27 00:38:42 · answer #6 · answered by klitzner 4 · 0⤊ 0⤋
subtract b to both sides and then divide o to both side
2006-12-17 08:03:26 · answer #7 · answered by Eric 2 · 0⤊ 0⤋
7o+8b=279
8b=7o+279
b=(7o+279)/8
5o+6((7o+279)/8)=205
5o+3(7o+279)/4=205
5o+21/4o+209.25=205
41/4o=-4.25
o=-.41
2006-12-17 08:05:57 · answer #8 · answered by Stewie 1 · 0⤊ 0⤋