Solve the formula: h= (j(t+q))/4

[flora33]

Okay, so here is another one that I'm having a really hard time with. I've looked all over the sections of my book we are covering and can't find an example to work from. I've looked through all the resources we have too- and nothing to work off of. This is an online class and it's hard to get a hold of the teacher when needed. I would appreciate it if someone could look at it and explain how to do it.
I'm totally not trying to get anyone to just do the work for me, but I honestly can't find an explanation anywhere as to how to do it!

Thanks!

h= (j(t+q))/4

 

[sgtpepper]

When you have a problem with 4 unknowns, I think you need 4 equations to solve for the variables unless you're solving for them in terms of themselves:

h = (j(t + q))/4
j = (4h)/(t + q)

and so on. However, you can't consider these equations as any but one of your 4 equations, because you got them all from one equation:

h = (j(t + q))/4

and so I think this problem is unsolvable at the moment, or solvable with a very large number of solution sets.

 

[flora33]

When you have a problem with 4 unknowns, I think you need 4 equations to solve for the variables unless you're solving for them in terms of themselves:

h = (j(t + q))/4
j = (4h)/(t + q)

and so on. However, you can't consider these equations as any but one of your 4 equations, because you got them all from one equation:

h = (j(t + q))/4

and so I think this problem is unsolvable at the moment, or solvable with a very large number of solution sets.

Thanks for your help, but you know what I just realized? I left out a part of the problem! The problem asks you to solve for the variable q. GEEEZ, I can't believe I left that part out! This is why I'm horrible at algebra, I'm always rushing through and forgetting stuff!!

 

[Denis]

So you're asked to solve h = (j(t + q)) / 4 for q ; means you end up with q = something

Step 1: crossmultiply: j(t + q) = 4h

Step 2: perform multiplication: jt + jq = 4h

Step 3: move the jt term: jq = 4h - jt

I'll let you finish it....slowly!!!

 

[flora33]

So you're asked to solve h = (j(t + q)) / 4 for q ; means you end up with q = something

Step 1: crossmultiply: j(t + q) = 4h

Step 2: perform multiplication: jt + jq = 4h

Step 3: move the jt term: jq = 4h - jt

I'll let you finish it....slowly!!!

Okay... Like I said, I'm TOTALLY clueless with this type of problem, it might as well be a bunch of scribbles! Haha! Here goes though:

Step 4: to isolate the q, divide both side by j: jq/j = 4h - jt/j

Soooo, would it be q = 4h/j - t ???

 

[Deleted member 4993]

Step 4: to isolate the q, divide both side by j: jq/j = 4h - jt/j

Soooo, would it be q = 4h/j - t <<<<< Correct