# Thread: Word Problem for Algebra.

1. Originally Posted by BrilliantLegacy
Do you mind telling me the the answer for the first one? I want to make sure I have it right.
at 8 percent it is 26500 and at 6 percent it 19500

2. Originally Posted by 11rdc11
I got a different answer. Speeds are 75 and 105. The passenger should be faster

x=y-30 or x+30=y
nope i just checked it again and im correct

x is passenger
y is freight
if u didnt know by the way

3. Originally Posted by 11rdc11
at 8 percent it is 26500 and at 6 percent it 19500
ya u are correct i just got that answer then found out u posted b4 me cause i was doin something else

4. Originally Posted by saar4ever
nope i just checked it again and im correct

x is passenger
y is freight
if u didnt know by the way
Try it again. If you let y = freight then your equation should be
60(y+30)= 100(x)

5. Originally Posted by 11rdc11
$\displaystyle .08(x+7000) + .0 6(x) = 3290$
Care to explain why you set it up like that?

6. 60(x)= 100(x+30)

60x = 100x + 3000

-3000 = -40x

x = 75

7. Originally Posted by BrilliantLegacy
Care to explain why you set it up like that?
What part do you need me to explain?

8. Originally Posted by 11rdc11
What part do you need me to explain?
Actually it would be nice if you go over the WHOLE thing. Pretty please!!
I've been sitting here for about an hour now trying to solve why I got the wrong answer.

9. ok so x represents amout invested at 6 percent , (x+7000) represent s amounr invested at 8 percent so

.08(X+7000) +.06(x) =3290

.08x + 560 + .06x = 3290

.14x = 2730

x = 19500

which means at 6 percent 19500 was invested, and for 8 percent (19500 +7000)=26500

10. Originally Posted by 11rdc11
ok so x represents amout invested at 6 percent , (x+7000) represent s amounr invested at 8 percent so

.08(X+7000) +.06(x) =3290

.08x + 560 + .06x = 3290

.14x = 2730

x = 19500

which means at 6 percent 19500 was invested, and for 8 percent (19500 +7000)=26500
Ohhhh. I see!!!!!!! I thought .08 and .06 are different variables.
Can I ask you another question? How do you manage to set up those equations like that? I've been learning these stuff for few days now and I still have trouble setting them up as an equation.

11. Originally Posted by BrilliantLegacy
Ohhhh. I see!!!!!!! I thought .08 and .06 are different variables.
Can I ask you another question? How do you manage to set up those equations like that? I've been learning these stuff for few days now and I still have trouble setting them up as an equation.
You can work it using 2 different variables but not sure if you have learned that yet. Word problems just take practice

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