SOLUTION: When I get to the last portion of the problem I get stuck on this. 5/9 * 9/5 < 5/9 (1542.4) The answer comes out to C

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Question 420933: When I get to the last portion of the problem I get stuck on this.
5/9 * 9/5 < 5/9 (1542.4)
The answer comes out to
C < 856.9 but how did they get it?
Found 2 solutions by ilana, solver91311:
Answer by ilana(307) (Show Source):
You can put this solution on YOUR website!
You left out a piece of the inequality- the variable C.
It looks like the inequality was originally 9/5 * C < 154.2.
Then, to isolate the variable C, you multiply each side of the inequality by 5/9. Since this is a positive number, the inequality symbol stays the same.
Now you have (almost) what you wrote.
5/9 * 9/5 * C < 5/9 * 1542.4
Then multiply on the left side, 5/9 * 9/5 = 1, so 5/9 * 9/5 * C = C.
So the inequality is C < 5/9 * 1542.4
Now multiply on the left side, 5/9 * 1542.4 = (approximately) 856.9.
So the inequality is C < 856.9

Answer by solver91311(24713) (Show Source):
You can put this solution on YOUR website!

which, rounded to the nearest tenth is 856.9.

However, since there is no variable "C" in your original inequality, I don't know how to get to

from

The best I can do is the triviality:

I suspect you have made an error in an earlier step. Share the original problem please. Share it on the board so everyone can see it.

John

My calculator said it, I believe it, that settles it

SOLUTION: When I get to the last portion of the problem I get stuck on this. 5/9 * 9/5 < 5/9 (1542.4) The answer comes out to C < 856.9 but how did they get it?