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3241004551 [841]
2 years ago
11

Xavier starts the summer with $315 in his savings account. Since he will be working a lot this summer, he made plans to deposit

$80 into his account each week. If he ended the summer with $955 in his savings account, how many weeks did he make deposit?
Mathematics
1 answer:
Alenkinab [10]2 years ago
4 0

Answer: 8 weeks

Step-by-step explanation:

He originally had $315 in his account. This figure increased to $955. It therefore increased by:

= 955 - 315

= $640

If he deposited $80 every week, the number of weeks it would take to deposit $640 is:

= 640/80

= 8 weeks

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Some graphing calculators can do such math. There are also dot product calculators available on the Internet. If you have quite a few of these to calculate, you can put the appropriate formula into a spreadsheet.

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