I am not getting this word problem could some one help Pls.

[passionflower_40]

Dorothy bought two computers, one desktop and one laptop. Before finance charges, the laptop cost $1000 less than the desktop. Dorothy paid for the computers using two different financing plans. For the desktop the interest rate was 8% per year, and for the laptop it was 7% per year. The total finance charges for one year were $492.50 . How much did the desktop computer cost before finance charges?

 

[tkhunny]

Re: I am not getting this word problem could some one help P

Dorothy bought two computers, one desktop and one laptop. Before finance charges, the laptop cost $1000 less than the desktop. Dorothy paid for the computers using two different financing plans. For the desktop the interest rate was 8% per year, and for the laptop it was 7% per year. The total finance charges for one year were $492.50 . How much did the desktop computer cost before finance charges?

We're developing a problem pattern, here. You are not showing your work. Typically, you don't even write down definitions. We are not here to do your homework for you. The task is to help you learn how to solve such problems on your own, to teach you how to think about them and overcome your fears. A demonstration that WE know how to solve the problem is NOT beneficial to you. Benefit to YOU is what we seek.

1) Write down your definitions. Be clear and specific.
2) Translate the problem statement one phrase at a time.

Show ALL your work.

Let's see if we can get you past this little blockade that has you feeling like you have no clue how to proceed.

 

[passionflower_40]

Re: I am not getting this word problem could some one help P

Dorothy bought two computers, one desktop and one laptop. Before finance charges, the laptop cost $1000 less than the desktop. Dorothy paid for the computers using two different financing plans. For the desktop the interest rate was 8% per year, and for the laptop it was 7% per year. The total finance charges for one year were $492.50 . How much did the desktop computer cost before finance charges?

We're developing a problem pattern, here. You are not showing your work. Typically, you don't even write down definitions. We are not here to do your homework for you. The task is to help you learn how to solve such problems on your own, to teach you how to think about them and overcome your fears. A demonstration that WE know how to solve the problem is NOT beneficial to you. Benefit to YOU is what we seek.

1) Write down your definitions. Be clear and specific.
2) Translate the problem statement one phrase at a time.

Show ALL your work.

Let's see if we can get you past this little blockade that has you feeling like you have no clue how to proceed.

tk I do apologize, I am not trying to take avantage here, I am 41 years old and I have not only trying to grasp at what I do not know because when I went to school in 82 I only learn the general basic math and not what has been present such as algebra with new formulas all the time. So I was seeking guidance in how to do set up formulas because my homework book do not give enough information to be able to grasp on my own. I am not looking for an hand out just seeking direction here. Thanks.

 

[ctelady]

Re: I am not getting this word problem could some one help P

Dorothy bought two computers, one desktop and one laptop. Before finance charges, the laptop cost $1000 less than the desktop. Dorothy paid for the computers using two different financing plans. For the desktop the interest rate was 8% per year, and for the laptop it was 7% per year. The total finance charges for one year were $492.50 . How much did the desktop computer cost before finance charges?

interest = principal [which in this case is the cost] * rate * time [since the loan is for 1 year in each case, we can ignore this; multiplying by 1 won't change the result.]

Let x be cost of desktop, then x-1000 = cost of laptop
(Cost * percent desktop) + (cost * percent laptop) = total interest
x(.08) + (x-1000)(.07) = 492.50
.08x + .07x -70 = 492.50 Can you take it from here?

 

[passionflower_40]

Re: I am not getting this word problem could some one help P

Dorothy bought two computers, one desktop and one laptop. Before finance charges, the laptop cost $1000 less than the desktop. Dorothy paid for the computers using two different financing plans. For the desktop the interest rate was 8% per year, and for the laptop it was 7% per year. The total finance charges for one year were $492.50 . How much did the desktop computer cost before finance charges?

interest = principal [which in this case is the cost] * rate * time [since the loan is for 1 year in each case, we can ignore this; multiplying by 1 won't change the result.]

Let x be cost of desktop, then x-1000 = cost of laptop
(Cost * percent desktop) + (cost * percent laptop) = total interest
x(.08) + (x-1000)(.07) = 492.50
.08x + .07x -70 = 492.50 Can you take it from here?

I thank you for assistancing me witht the formula of this problelm ctelady and i writes all the formulas down this is what I came up with:

0.08*x+0.07*x-70=492.50

x=2*3^(2-1)*5^4

x=2*3*625

x=3,750 this is what I came up with

 

[happy]

Tk, don't you know who that is? It's Mathxyz/greatwhiteshark/Ritanyc. :wink: