@smallfry wrote:
Penfed? It's really a non starter anyway. If I put all my activity on one card I would see 500 bucks a year at 1.25%. I have bigger fish to fry.
Now that gives me a math problem to give a co worker. One card pays 1.25 percent and another card pays 1 percent to 4000 in purchaes and then 1.5 percent after that. At what level of purchases do the cash back on both cards equal the same amount?
That is exactly the type of problems she has in her math class that I'm tutoring her for. 
@Karatz wrote:
@smallfry wrote:
Penfed? It's really a non starter anyway. If I put all my activity on one card I would see 500 bucks a year at 1.25%. I have bigger fish to fry.Now that gives me a math problem to give a co worker. One card pays 1.25 percent and another card pays 1 percent to 4000 in purchaes and then 1.5 percent after that. At what level of purchases do the cash back on both cards equal the same amount?
That is exactly the type of problems she has in her math class that I'm tutoring her for.
You're making me dizzy.
pattycake wrote:
@Karatz wrote:
@smallfry wrote:
Penfed? It's really a non starter anyway. If I put all my activity on one card I would see 500 bucks a year at 1.25%. I have bigger fish to fry.Now that gives me a math problem to give a co worker. One card pays 1.25 percent and another card pays 1 percent to 4000 in purchaes and then 1.5 percent after that. At what level of purchases do the cash back on both cards equal the same amount?
That is exactly the type of problems she has in her math class that I'm tutoring her for.
You're making me dizzy.
Two trains approach one another on parallel tracks. One is going 40 mph, and the other is going 25 mph. They are 48 miles apart. How long will it be until they meet... I feel like I'm back in 8th grade again!
You'd have to spend $8K to wind up with the same amount of rewards. $40 (which is 1% of $4K) + $60 (which is 1.5% of $4K) = $100; $100 = 1.25% of $8K.
Next week, quadratic equations!
@haulingthescoreup wrote:
@pattycake wrote:
@Karatz wrote:
@smallfry wrote:
Penfed? It's really a non starter anyway. If I put all my activity on one card I would see 500 bucks a year at 1.25%. I have bigger fish to fry.Now that gives me a math problem to give a co worker. One card pays 1.25 percent and another card pays 1 percent to 4000 in purchaes and then 1.5 percent after that. At what level of purchases do the cash back on both cards equal the same amount?
That is exactly the type of problems she has in her math class that I'm tutoring her for.
You're making me dizzy.
Two trains approach one another on parallel tracks. One is going 40 mph, and the other is going 25 mph. They are 48 miles apart. How long will it be until they meet... I feel like I'm back in 8th grade again!
You'd have to spend $8K to wind up with the same amount of rewards. $40 (which is 1% of $4K) + $60 (which is 1.5% of $4K) = $100; $100 = 1.25% of $8K.
Next week, quadratic equations!
First problem I just did it before I logged in here:
0.0125 times X equals Y
(X minus 4000) times 0.015 plus 4000 times 0.01 equals Y
Set the first equation to equal the second equation (Y=Y of course) and solve for X (X equals 8000 of cours)
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Next question:
ax^2 plus bx plus c equals 0
solve for x, and show your work 
