Brendon W.
asked • 02/23/152 items that double in size 30 times
if there are 2 items that double in size each day. (example : 2x2=4 4x4= 16 16x16=256) what is the total after 30 days?
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1 Expert Answer
Gwen R. answered • 03/05/15
Tutor
4.9
(205)
I like to see the lights go on! All ages, math, science, reading, ACT.
Let's say the first item has size x and the second item has size y starting on day one:
Day One x • 2 2x 21x
Day Two 2(2x) 4x 22x
Day Three 2(4x) 8x 23x
... ...
... ...
Day 30 230x
On Day 30 the first item is REALLY big! It is 1,073,741,824 times as big as it started.
On Day 30 the second item is 1,073,741,824 times as big as it started.
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Mark M.
02/23/15