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Paraphin [41]
4 years ago
15

Ann opened a new savings account with an initial deposit of $250. Which combination will result in a zero in balance in Ann's ac

count?
A) Ever week for 5 weeks, deposit $10 on Monday, Wednesday, and Friday, and withdraw $27.50 on Tuesday and Thursday.
B) Ever week for 5 weeks, deposit $20 on Monday, Wednesday, and Friday, and withdraw $27.50 on Tuesday and Thursday.
C) Ever week for 10 weeks, deposit $10 on Monday, Wednesday, and Friday, and withdraw $27.50 on Tuesday and Thursday.
D) Ever week for 10 weeks, deposit $20 on Monday, Wednesday, and Friday, and withdraw $27.50 on Tuesday and Thursday.
Mathematics
1 answer:
Blababa [14]4 years ago
8 0
C.  (10x3)10 - (27.5x2)10 = 0
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Answer:

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Step-by-step explanation:

It's best to enclose fractional coefficients inside parentheses to eliminate ambiquity:   2/7m-1/7=3/14 => (2/7(m - (1/7) = (3/14).

The LCD is 14; each of the denominators {7, 14} divides evenly into 14.  Hence our equation becomes

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Let's multiply each side by 7 to eliminate the remaining fraction:

4(7m - 1) = 21, or

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Answer:

Explanation:

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