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Selena2345
Group Title
A Goblin Miner earns 1 cent the first day, 2 cents the second day 4 cents the third day, 8 cents the fourth day and so on doubling the amount each day. How much will the miner earn in 7 days ? 2 Weeks? 1 Month ( Make An Estimate Before Solving) Show/ Explain All Work
 2 years ago
 2 years ago
Selena2345 Group Title
A Goblin Miner earns 1 cent the first day, 2 cents the second day 4 cents the third day, 8 cents the fourth day and so on doubling the amount each day. How much will the miner earn in 7 days ? 2 Weeks? 1 Month ( Make An Estimate Before Solving) Show/ Explain All Work
 2 years ago
 2 years ago

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satellite73 Group TitleBest ResponseYou've already chosen the best response.2
7 days is easy 1+2+4+8+16+32+64
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.2
you might notice that this is 127, one less than 2 times 64
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.2
you have \(1, 2, 2^2, 2^3, 2^4, ...\)
 2 years ago

Selena2345 Group TitleBest ResponseYou've already chosen the best response.0
Are your answering the question right
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.2
in 7 days you will have earned \(2^71=\$1.27\)
 2 years ago

Selena2345 Group TitleBest ResponseYou've already chosen the best response.0
Are your answering the question right
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.2
in two weeks you will have \(2^{4}1\) pennies, a calculator gives \(\$163.83\)
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
I want that job if I get to work the whole month!
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.2
me too in one month of 31 days you will have made \(2^{31}1\) pennies, more money than i will earn in several life times
 2 years ago

Selena2345 Group TitleBest ResponseYou've already chosen the best response.0
can u help cliffSedge
 2 years ago

Selena2345 Group TitleBest ResponseYou've already chosen the best response.0
yes cliffsedge thank you
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
If you have a calculator, you can try entering '1' then hitting x2 a bunch of times (counting how many times you do so.)
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
Of course, that will only get you the per day earnings. You'll have to add up all the previous days' to get the total.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
But satellite's formula is a lot quicker. ;)
 2 years ago

Selena2345 Group TitleBest ResponseYou've already chosen the best response.0
thank you agent47
 2 years ago

Agent47 Group TitleBest ResponseYou've already chosen the best response.0
Let x be the amt u earn per day... Then, in 1 day: 1cent = 2^0 cents 2 days: 2 cents = 2^1 cents 3 days: 4 cents = 2^2 cents 4 days: 8 cents = 2^3 cents... So, in n days, you get 2^(n1) cents
 2 years ago

Agent47 Group TitleBest ResponseYou've already chosen the best response.0
I think, satellite's made a mistake.. but that's IMPOSSIBRU!
 2 years ago

Agent47 Group TitleBest ResponseYou've already chosen the best response.0
Thus, in 7 days: 2^(71)=2^6=64 cents
 2 years ago

Agent47 Group TitleBest ResponseYou've already chosen the best response.0
woah waitttt
 2 years ago

Agent47 Group TitleBest ResponseYou've already chosen the best response.0
That is the amount he earned on the 1st, 2nd, 3rd, 4th, etc days, and on the 7th day he earns 64 cents
 2 years ago

Selena2345 Group TitleBest ResponseYou've already chosen the best response.0
is the answer to the question finish
 2 years ago

Agent47 Group TitleBest ResponseYou've already chosen the best response.0
Not yet... the formula is: dw:1347412596200:dw
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.2
actually i gave the total earned on day \(n\) not the amount earned on day \(n\)
 2 years ago

Agent47 Group TitleBest ResponseYou've already chosen the best response.0
ya you're right, i just realized that
 2 years ago

Selena2345 Group TitleBest ResponseYou've already chosen the best response.0
is the answer to the question finish
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.2
on day \(n\) you earn \(2^{n1}\) pennies, for a total of \(2^n1\) pennies
 2 years ago

Agent47 Group TitleBest ResponseYou've already chosen the best response.0
ok i see, then that's the final answer... satellite why are u so smart?
 2 years ago

Selena2345 Group TitleBest ResponseYou've already chosen the best response.0
who's correct satellite or agent47
 2 years ago

Agent47 Group TitleBest ResponseYou've already chosen the best response.0
satellite, obv, who's a level 100 here?
 2 years ago

Agent47 Group TitleBest ResponseYou've already chosen the best response.0
but i did realize my mistake, before satellite pointed it out :P
 2 years ago

Selena2345 Group TitleBest ResponseYou've already chosen the best response.0
who's correct satellite or agent47
 2 years ago
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