yeah

so we should find what amount would be added to add up to 100g I think

but there’s only 30 possible combinations

because he only saved for 30 days

we could have 13 50 cents, 1 10 cent and 1 20 cent

I'll see if that adds up to 100g brb

damn it it's 99 g

I think 12 50 cents, 2 20 cent and 2 10 cent would add up to 100g

this seems impossible 😭

not really, we just have to try different possiblilities

although I think we were suppose to use different methods

I'm just seeing the worst and best case sernerio

alrighty

using 12 50 cents, 2 20 cents and 2 10 cents we get 660 extra cents

or 6.60

uh huh, we still have to find the worst case senerio

So the way to write it is

1000g = 7gF + 5gTW+ 3gTN

You know he adds at least two of each every day.

420 50c
300 20c
180 10c
900c to cover.

100g=7F+5TW+3TN

To maximize start by testing 7. 7 goes into 100 14 times with a remainder of two, but we need more room to work, so bump it down to 13. 7*13 gives us 91, with can then be made to 100 by adding 3 10c.

An additional $6.80 to the minimum.

i’m actually starting to understand it way better

so I tested with the least 50 cents and found that 10 20 cents and 10 10 cents and 4 50 cents adds up to 100g

For the minimum it will be 30 3g & 2 5g.

oh lol I can't math

yeah I realized I didn't need 50 cents

in other words, the more 50 cents you have the more money you get, less 50 cents the less money you get

That's my way of looking at it. However, it may be a trick. It may be worth maximizing the 20C category.

Actually, I think that may be better...

yeah this one seems to be a bunch of trial and error with 3o different combinations

using 20 cents we would be able to put 20 extra coins and in turn get like 5 dollars

Never mind. Use 13 7g coins, gets you $6.5

Then add 3 10C coins to even the 100g needed to meet 10kg.

That would be the maximum amount you would get. the lowest would be 30 10 cent coins and 2 20 cent coins

the answer would be maxmimum amount - lowest amount.

so 6.5$ - 3.4$

Yes.

3.10$ should be your answer

No! That's not right. It's 3.4

You forgot to add .3 to the maximum to get to 100g.

oh my bad

It seems the person with the problem has left us here.

eh whatever I think he figured it out on his own

sorry guys