Equation for Comparing Autos [closed] The Next CEO of Stack OverflowHow To Solve a Ratio...
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Equation for Comparing Autos [closed]
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$begingroup$
I am buying a used vehicle. I want an equation that will allow me to compare two vehicle's value that are identical in every way except price and mileage. For example:
Car A: $20395 cost and 83400 miles
Car B: $17090 cost and 10500 miles
Car C: $24000 cost and 39000 miles
Miles: lower miles = good
Cost: higher cost = bad
What is a ratio/equation that can produce a number to compare these two variables across vehicles?
ratio
asked Mar 16 at 17:38
FrankFrank
11
$endgroup$
closed as off-topic by Xander Henderson, Vinyl_cape_jawa, YiFan, Morgan Rodgers, Parcly Taxel Mar 17 at 2:17
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Xander Henderson, Vinyl_cape_jawa, YiFan, Morgan Rodgers, Parcly Taxel
If this question can be reworded to fit the rules in the help center, please edit the question.
add a comment |
$begingroup$
I am buying a used vehicle. I want an equation that will allow me to compare two vehicle's value that are identical in every way except price and mileage. For example:
Car A: $20395 cost and 83400 miles
Car B: $17090 cost and 10500 miles
Car C: $24000 cost and 39000 miles
Miles: lower miles = good
Cost: higher cost = bad
What is a ratio/equation that can produce a number to compare these two variables across vehicles?
ratio
asked Mar 16 at 17:38
FrankFrank
11
$endgroup$
closed as off-topic by Xander Henderson, Vinyl_cape_jawa, YiFan, Morgan Rodgers, Parcly Taxel Mar 17 at 2:17
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Xander Henderson, Vinyl_cape_jawa, YiFan, Morgan Rodgers, Parcly Taxel
If this question can be reworded to fit the rules in the help center, please edit the question.
2
$begingroup$
You don't need an equation. The cheapest car is the car with fewest miles. What's the problem?
$endgroup$
– Dog_69
Mar 16 at 17:40
$begingroup$
You may think of something like: $c + k times m$, where $c$ is the cost of the car, $m$ is the number of miles it travelled so far and $k$ is how much you expect to spend on maintenance of your car due to the $m$ miles it already travelled.
$endgroup$
– Ertxiem
Mar 16 at 18:19
$begingroup$
Dog_69 That's not always true. So which is the best value per mile car out of these: Car A $16000 at 83379 mi; Car B $24500 at 38341 mi; Car C $19400 at 76,707 miles?
$endgroup$
– Frank
Mar 16 at 18:57
$begingroup$
Ertxiem, I don't want to factor maintenance cost. I just want to compare across these two variables.
$endgroup$
– Frank
Mar 16 at 18:59
add a comment |
$begingroup$
I am buying a used vehicle. I want an equation that will allow me to compare two vehicle's value that are identical in every way except price and mileage. For example:
Car A: $20395 cost and 83400 miles
Car B: $17090 cost and 10500 miles
Car C: $24000 cost and 39000 miles
Miles: lower miles = good
Cost: higher cost = bad
What is a ratio/equation that can produce a number to compare these two variables across vehicles?
ratio
asked Mar 16 at 17:38
FrankFrank
11
$endgroup$
I am buying a used vehicle. I want an equation that will allow me to compare two vehicle's value that are identical in every way except price and mileage. For example:
Car A: $20395 cost and 83400 miles
Car B: $17090 cost and 10500 miles
Car C: $24000 cost and 39000 miles
Miles: lower miles = good
Cost: higher cost = bad
What is a ratio/equation that can produce a number to compare these two variables across vehicles?
ratio
ratio
asked Mar 16 at 17:38
FrankFrank
11
asked Mar 16 at 17:38
FrankFrank
11
asked Mar 16 at 17:38
FrankFrank
11
asked Mar 16 at 17:38
FrankFrank
11
asked Mar 16 at 17:38
FrankFrank
11
11
closed as off-topic by Xander Henderson, Vinyl_cape_jawa, YiFan, Morgan Rodgers, Parcly Taxel Mar 17 at 2:17
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Xander Henderson, Vinyl_cape_jawa, YiFan, Morgan Rodgers, Parcly Taxel
If this question can be reworded to fit the rules in the help center, please edit the question.
closed as off-topic by Xander Henderson, Vinyl_cape_jawa, YiFan, Morgan Rodgers, Parcly Taxel Mar 17 at 2:17
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Xander Henderson, Vinyl_cape_jawa, YiFan, Morgan Rodgers, Parcly Taxel
If this question can be reworded to fit the rules in the help center, please edit the question.
2
$begingroup$
You don't need an equation. The cheapest car is the car with fewest miles. What's the problem?
$endgroup$
– Dog_69
Mar 16 at 17:40
$begingroup$
You may think of something like: $c + k times m$, where $c$ is the cost of the car, $m$ is the number of miles it travelled so far and $k$ is how much you expect to spend on maintenance of your car due to the $m$ miles it already travelled.
$endgroup$
– Ertxiem
Mar 16 at 18:19
$begingroup$
Dog_69 That's not always true. So which is the best value per mile car out of these: Car A $16000 at 83379 mi; Car B $24500 at 38341 mi; Car C $19400 at 76,707 miles?
$endgroup$
– Frank
Mar 16 at 18:57
$begingroup$
Ertxiem, I don't want to factor maintenance cost. I just want to compare across these two variables.
$endgroup$
– Frank
Mar 16 at 18:59
add a comment |
2
$begingroup$
You don't need an equation. The cheapest car is the car with fewest miles. What's the problem?
$endgroup$
– Dog_69
Mar 16 at 17:40
$begingroup$
You may think of something like: $c + k times m$, where $c$ is the cost of the car, $m$ is the number of miles it travelled so far and $k$ is how much you expect to spend on maintenance of your car due to the $m$ miles it already travelled.
$endgroup$
– Ertxiem
Mar 16 at 18:19
$begingroup$
Dog_69 That's not always true. So which is the best value per mile car out of these: Car A $16000 at 83379 mi; Car B $24500 at 38341 mi; Car C $19400 at 76,707 miles?
$endgroup$
– Frank
Mar 16 at 18:57
$begingroup$
Ertxiem, I don't want to factor maintenance cost. I just want to compare across these two variables.
$endgroup$
– Frank
Mar 16 at 18:59
2
2
$begingroup$
You don't need an equation. The cheapest car is the car with fewest miles. What's the problem?
$endgroup$
– Dog_69
Mar 16 at 17:40
$begingroup$
You don't need an equation. The cheapest car is the car with fewest miles. What's the problem?
$endgroup$
– Dog_69
Mar 16 at 17:40
$begingroup$
You may think of something like: $c + k times m$, where $c$ is the cost of the car, $m$ is the number of miles it travelled so far and $k$ is how much you expect to spend on maintenance of your car due to the $m$ miles it already travelled.
$endgroup$
– Ertxiem
Mar 16 at 18:19
$begingroup$
You may think of something like: $c + k times m$, where $c$ is the cost of the car, $m$ is the number of miles it travelled so far and $k$ is how much you expect to spend on maintenance of your car due to the $m$ miles it already travelled.
$endgroup$
– Ertxiem
Mar 16 at 18:19
$begingroup$
Dog_69 That's not always true. So which is the best value per mile car out of these: Car A $16000 at 83379 mi; Car B $24500 at 38341 mi; Car C $19400 at 76,707 miles?
$endgroup$
– Frank
Mar 16 at 18:57
$begingroup$
Dog_69 That's not always true. So which is the best value per mile car out of these: Car A $16000 at 83379 mi; Car B $24500 at 38341 mi; Car C $19400 at 76,707 miles?
$endgroup$
– Frank
Mar 16 at 18:57
$begingroup$
Ertxiem, I don't want to factor maintenance cost. I just want to compare across these two variables.
$endgroup$
– Frank
Mar 16 at 18:59
$begingroup$
Ertxiem, I don't want to factor maintenance cost. I just want to compare across these two variables.
$endgroup$
– Frank
Mar 16 at 18:59
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
Decide on a number of miles that represents a wore-out car and call that number as w.
Then
(miles / w) * price = index value .
But large differences in price become relatively insignificant at small mileages.
New edit:
Or instead
index value = (w - miles) / price .
That's actually miles-remaining-per-dollar. But that doesn't hold for negative values.
answered Mar 16 at 20:54
S SpringS Spring
1873
$endgroup$
$begingroup$
@S Spring: So the higher the index number, the worse deal/value the vehicle is, correct. I want the vehicle with the lowest index value? Thank you so much. Can't tell you how many math majors and teachers I've given this problem and none of them have come up with an equation for an index.
$endgroup$
– Frank
Mar 16 at 23:20
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
Decide on a number of miles that represents a wore-out car and call that number as w.
Then
(miles / w) * price = index value .
But large differences in price become relatively insignificant at small mileages.
New edit:
Or instead
index value = (w - miles) / price .
That's actually miles-remaining-per-dollar. But that doesn't hold for negative values.
answered Mar 16 at 20:54
S SpringS Spring
1873
$endgroup$
$begingroup$
@S Spring: So the higher the index number, the worse deal/value the vehicle is, correct. I want the vehicle with the lowest index value? Thank you so much. Can't tell you how many math majors and teachers I've given this problem and none of them have come up with an equation for an index.
$endgroup$
– Frank
Mar 16 at 23:20
add a comment |
$begingroup$
Decide on a number of miles that represents a wore-out car and call that number as w.
Then
(miles / w) * price = index value .
But large differences in price become relatively insignificant at small mileages.
New edit:
Or instead
index value = (w - miles) / price .
That's actually miles-remaining-per-dollar. But that doesn't hold for negative values.
answered Mar 16 at 20:54
S SpringS Spring
1873
$endgroup$
$begingroup$
@S Spring: So the higher the index number, the worse deal/value the vehicle is, correct. I want the vehicle with the lowest index value? Thank you so much. Can't tell you how many math majors and teachers I've given this problem and none of them have come up with an equation for an index.
$endgroup$
– Frank
Mar 16 at 23:20
add a comment |
$begingroup$
Decide on a number of miles that represents a wore-out car and call that number as w.
Then
(miles / w) * price = index value .
But large differences in price become relatively insignificant at small mileages.
New edit:
Or instead
index value = (w - miles) / price .
That's actually miles-remaining-per-dollar. But that doesn't hold for negative values.
answered Mar 16 at 20:54
S SpringS Spring
1873
$endgroup$
Decide on a number of miles that represents a wore-out car and call that number as w.
Then
(miles / w) * price = index value .
But large differences in price become relatively insignificant at small mileages.
New edit:
Or instead
index value = (w - miles) / price .
That's actually miles-remaining-per-dollar. But that doesn't hold for negative values.
answered Mar 16 at 20:54
S SpringS Spring
1873
edited Mar 17 at 4:56
answered Mar 16 at 20:54
S SpringS Spring
1873
answered Mar 16 at 20:54
S SpringS Spring
1873
answered Mar 16 at 20:54
S SpringS Spring
1873
1873
$begingroup$
@S Spring: So the higher the index number, the worse deal/value the vehicle is, correct. I want the vehicle with the lowest index value? Thank you so much. Can't tell you how many math majors and teachers I've given this problem and none of them have come up with an equation for an index.
$endgroup$
– Frank
Mar 16 at 23:20
add a comment |
$begingroup$
@S Spring: So the higher the index number, the worse deal/value the vehicle is, correct. I want the vehicle with the lowest index value? Thank you so much. Can't tell you how many math majors and teachers I've given this problem and none of them have come up with an equation for an index.
$endgroup$
– Frank
Mar 16 at 23:20
$begingroup$
@S Spring: So the higher the index number, the worse deal/value the vehicle is, correct. I want the vehicle with the lowest index value? Thank you so much. Can't tell you how many math majors and teachers I've given this problem and none of them have come up with an equation for an index.
$endgroup$
– Frank
Mar 16 at 23:20
$begingroup$
@S Spring: So the higher the index number, the worse deal/value the vehicle is, correct. I want the vehicle with the lowest index value? Thank you so much. Can't tell you how many math majors and teachers I've given this problem and none of them have come up with an equation for an index.
$endgroup$
– Frank
Mar 16 at 23:20
add a comment |
2
$begingroup$
You don't need an equation. The cheapest car is the car with fewest miles. What's the problem?
$endgroup$
– Dog_69
Mar 16 at 17:40
$begingroup$
You may think of something like: $c + k times m$, where $c$ is the cost of the car, $m$ is the number of miles it travelled so far and $k$ is how much you expect to spend on maintenance of your car due to the $m$ miles it already travelled.
$endgroup$
– Ertxiem
Mar 16 at 18:19
$begingroup$
Dog_69 That's not always true. So which is the best value per mile car out of these: Car A $16000 at 83379 mi; Car B $24500 at 38341 mi; Car C $19400 at 76,707 miles?
$endgroup$
– Frank
Mar 16 at 18:57
$begingroup$
Ertxiem, I don't want to factor maintenance cost. I just want to compare across these two variables.
$endgroup$
– Frank
Mar 16 at 18:59