Di A.

asked • 04/03/16

How much money will she be saving?

Kat is saving money for a vacation. She starts out saving $10 a week. She plans to double the amount she is saving each month. How much money will she be saving the fourth month? A) $40. B) $60. C) $120. D) $240

John G.

It seems like either the problem has a typo or the answers do.  If she's saving 10 a week, that would be 40 per month to start, which would then become 80, 160, and finally 320 in the fourth month.
 
If she's saving 10 per month, then that would become 20, 40, and then 80 in the fourth month.  Since neither of those options are available, I'm not sure how to proceed.
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04/03/16

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Denissa G. answered • 04/03/16

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C) $120 - is the answer
 
because as you double the amount of savings each month, by the fourth month you have accumulated a total of $120. 
 
$10 the first month
$20 the 2nd month
$40 the 3rd month
$80 the 4th month
ADD
=$120
 
 
 
 
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