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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
 one year ago
 one year ago
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
 one year ago
 one year ago

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satellite73Best ResponseYou've already chosen the best response.2
7 days is easy 1+2+4+8+16+32+64
 one year ago

satellite73Best ResponseYou've already chosen the best response.2
you might notice that this is 127, one less than 2 times 64
 one year ago

satellite73Best ResponseYou've already chosen the best response.2
you have \(1, 2, 2^2, 2^3, 2^4, ...\)
 one year ago

Selena2345Best ResponseYou've already chosen the best response.0
Are your answering the question right
 one year ago

satellite73Best ResponseYou've already chosen the best response.2
in 7 days you will have earned \(2^71=\$1.27\)
 one year ago

Selena2345Best ResponseYou've already chosen the best response.0
Are your answering the question right
 one year ago

satellite73Best ResponseYou've already chosen the best response.2
in two weeks you will have \(2^{4}1\) pennies, a calculator gives \(\$163.83\)
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
I want that job if I get to work the whole month!
 one year ago

satellite73Best 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
 one year ago

Selena2345Best ResponseYou've already chosen the best response.0
can u help cliffSedge
 one year ago

Selena2345Best ResponseYou've already chosen the best response.0
yes cliffsedge thank you
 one year ago

CliffSedgeBest 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.)
 one year ago

CliffSedgeBest 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.
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
But satellite's formula is a lot quicker. ;)
 one year ago

Agent47Best 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
 one year ago

Agent47Best ResponseYou've already chosen the best response.0
I think, satellite's made a mistake.. but that's IMPOSSIBRU!
 one year ago

Agent47Best ResponseYou've already chosen the best response.0
Thus, in 7 days: 2^(71)=2^6=64 cents
 one year ago

Agent47Best 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
 one year ago

Selena2345Best ResponseYou've already chosen the best response.0
is the answer to the question finish
 one year ago

Agent47Best ResponseYou've already chosen the best response.0
Not yet... the formula is: dw:1347412596200:dw
 one year ago

satellite73Best ResponseYou've already chosen the best response.2
actually i gave the total earned on day \(n\) not the amount earned on day \(n\)
 one year ago

Agent47Best ResponseYou've already chosen the best response.0
ya you're right, i just realized that
 one year ago

Selena2345Best ResponseYou've already chosen the best response.0
is the answer to the question finish
 one year ago

satellite73Best ResponseYou've already chosen the best response.2
on day \(n\) you earn \(2^{n1}\) pennies, for a total of \(2^n1\) pennies
 one year ago

Agent47Best ResponseYou've already chosen the best response.0
ok i see, then that's the final answer... satellite why are u so smart?
 one year ago

Selena2345Best ResponseYou've already chosen the best response.0
who's correct satellite or agent47
 one year ago

Agent47Best ResponseYou've already chosen the best response.0
satellite, obv, who's a level 100 here?
 one year ago

Agent47Best ResponseYou've already chosen the best response.0
but i did realize my mistake, before satellite pointed it out :P
 one year ago

Selena2345Best ResponseYou've already chosen the best response.0
who's correct satellite or agent47
 one year ago
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