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You have $60 and your sister has $90. You are planning to save $8 per week and your sister is planning to save $5 per week. How long will it take before you and your sister have the same amount of money?

Respuesta :

It will take 10 weeks to have the same amount of money. 60+8*10=140 and 90+5*10=140.

athenammb
68    76      84      92    100    108     116     124    132    140
95    100    105    110   115     120     125   130    135    140

each of the groups of numbers represent one week what you do is add eight to 60 and then 5 to 90 and keep on doing that until you get the same number

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