Question

Please help! I solved the first two parts, and I'm just confused by Part C. It seriously doesn't even seem related to the problem and it doesn't make any sense. Thanks in advance.

~Micah K.

Part A: Solve C = 5 over 9 (F - 32) for F. (4 points)

Part B: Determine the value of F when C = 8 °C. (2 points)

Part C: Solve –np – 80 > 60 for n. Show your work. (4 points)

Answer 1

@hartnn I promise this is the last one. I need to get this assignment submitted and I just realized that there is still a short problem left.

Answer 2

he's offline D:

Answer 3

-np > 140

np < -140

n < -140/p

Make sense?

Answer 4

@ModernPraise97 But how is it related to the problem?

Answer 5

Part C: Solve –np – 80 > 60 for n
is only distantly related to Parts B and C. What's common to all three Parts is that you're asked to solve for something.

There's more than one way to solve for n in Part C.
I'd prefer this approach:

Add np to both sides of the inequality.
Subtract 60 from both sides.

Result: -140>np

Divide both sides by p.

What do you get?

Answer 6

-140 > np

-140/p > np/p

-140/p > n

Am I right?

Answer 7

What is 'n' and 'p' ??

Answer 8

@micahpkay ^^

Answer 9

Well, as long as you don't know whether p<0 or p>0...

Answer 10

@LastDayWork Why can't I divide by "p?"

Answer 11

If p<0 the sign of inequality will reverse..as you don't know whether p>0 or p<0; you shouldn't divide by p..

Answer 12

We do NOT have values for n or p.

so long as p is not equal to zero, we can divide both sides of -140 > np by p.

Case 1: if p is positive, -140/p >n.
Case 2: if p is negative, 140/p<n
Case 3: if p is zero, we cannot divide that p into -140 > np.

Answer 13

yes, but then the solution ^^ won't make any sense..we unnecessarily expanded a compact inequality..

Answer 14

LDW: I don't mean to offend you, but your statement, above, makes no sense whatsoever.

Please let micah respond. Our goal is to help him to understand the solution of this problem and to determine whether or not the solution(s) is/are correct.

Answer 15

I am not offended..nor I was intending to offend anyone..aggression and logic don't go well together :)

Answer 16

Micah: are you still with us? If you are, please indicate what you still need to understand. If you don't respond, I'll conclude you're no longer working on this problem.

Answer 17

I'm sorry. I already submitted my assignment. Thanks for your help, though!