Thread: Word Problem for Algebra.

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

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

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

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)

Originally Posted by 11rdc11

Care to explain why you set it up like that?

60(x)= 100(x+30)

60x = 100x + 3000

-3000 = -40x

x = 75

Originally Posted by BrilliantLegacy

Care to explain why you set it up like that?

What part do you need me to explain?

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.

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

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.

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