24-11-2015
Mathematics

contestada

Guadalupe wants to buy new goggles that cost $31.50. She has $4.50 and plans to save $2.25 each week. How many weeks will it take her to save the money?

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Since3122015 Since3122015

24-11-2015

[tex]y=2.25x+4.5\\(31.5)=2.25x+4.5\\2.25x=27\\x=12[/tex]

12 weeks.

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