Discussion
In the system of equations above, what is the value of b ?
| (A) | 8 |
| (B) | ... |
| (C) | ... |
| (D) | ... |
| (E) | ... |
| (F) | ... |
The solution is
Posted: 01/03/2012 13:06
Where is the system of equations?
Posted: 01/03/2012 13:39
Tatiana,
The equations are missed from the app. It should be:
a + b + c/2 = 60
−a − b + c/2 = −10
Thanks for pointing it. It will be added in our next version.
Best,
- The ArcadiaPrep Team
The equations are missed from the app. It should be:
a + b + c/2 = 60
−a − b + c/2 = −10
Thanks for pointing it. It will be added in our next version.
Best,
- The ArcadiaPrep Team
Posted: 06/26/2012 18:47
Can somebody explain how to do this .
Posted: 06/26/2012 18:47
ha, nevermind I understand now :)
Posted: 08/03/2012 17:48
I'd still like to know how.
Posted: 08/03/2012 18:34
M. Haque, did you know that after you make a choice, you can either go to the Next Question or Show Correct Answer? If you tap on Show Correct Answer, you will see the step-by-step solution. If after you read the step-by-step you still have a question then please post on the discussion forum.
Posted: 12/04/2012 15:49
Though we know that c=50, we're unsure of what the value of a is. The answer is (E).
Posted: 07/14/2013 12:13
Can't you use substitution?
Posted: 07/15/2013 13:47
A.W., we can use substitution. However, a quick glance into the 2 equations tells us we can solve for c very easily by adding up the two equations. Finally, we have 3 unknowns but only 2 equations, so we know we can't solve for all 3 unknowns.
Posted: 10/15/2014 08:33
Huh