[SPLIT] Rafael earns $35 more per week then Andrew....

crappiefisher26

New member
Joined
Jul 23, 2006
Messages
49
I'm stuck on this one.

Salaries. Rafael earns $35 more per week then Andrew. If their weekly salaries total $715, what amount does each earn.

Here is how I set it up:

x - 35 = 715

... but it's wrong. I don't want the answer, but I would appreciate advice on what I did wrong in setting it up. Thank you!
 

jonboy

Full Member
Joined
Jun 8, 2006
Messages
547
Hello Fisher! :)


Let Andy's pay be: \(\displaystyle \L a\)


Let Rafael's pay be: \(\displaystyle \L r\)


Rafael earns $35 more per week then Andrew:\(\displaystyle \L \;r=a+35\)


Their weekly salaries total $715: \(\displaystyle \L \;a+r=715\)


Solve the system.
 

Denis

Senior Member
Joined
Feb 17, 2004
Messages
1,442
crappiefisher26 said:
I'm stuck on this one.
Salaries. Rafael earns $35 more per week then Andrew. If their weekly salaries total $715, what amount does each earn.
Here is how I set it up:
x - 35 = 715
... but it's wrong. I don't want the answer, but I would appreciate advice on what I did wrong in setting it up. Thank you!
Crappy, WHAT is your "x" suppose to represent?
You seem to be missing the basics: have you got a teacher?
 

crappiefisher26

New member
Joined
Jul 23, 2006
Messages
49
yeh im way confused now.

if you got a+r=715 how do ya solve that?
 

Mrspi

Senior Member
Joined
Dec 17, 2005
Messages
2,128
crappiefisher26 said:
I'm stuck on this one.

Salaries. Rafael earns $35 more per week then Andrew. If their weekly salaries total $715, what amount does each earn.

Here is how I set it up:

x - 35 = 715

... but it's wrong. I don't want the answer, but I would appreciate advice on what I did wrong in setting it up. Thank you!
You need to specify what x represents!!

Suppose x represents Rafael's salary.

Now, we also need Andrew's salary, don't we? He earns $35 less per week than Rafael. If Rafael's salary is x, then Andrew's salary is x - 35

x = Rafael's salary
x - 35 = Andrew's salary

Now, we know this: together, they earn $715 each week. So,

Rafael's salary + Andrew's salary = 715
x + (x - 35) = 715

Ok...can you solve it now?

If you have difficulty solving this equation, you definitely need to talk to your teacher about getting some extra help.
 
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