Maths Olympiad Prep

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, 2020

Algebra Difficulty 1.6 Junior Find the answer Canada

Rosie is saving money. She has 120 in her account today and will begin saving by making 30 deposits into her account. If she makes mm such deposits, the expression that best represents the number of dollars in her account is

Pick one

Solution

If Rosie deposits 30eachmonthfor30 each month for mmonths,shewillsave months, she will save 30m$ dollars.
Rosie has 120inheraccounttoday,andsoafter120 in her account today, and so after m deposits Rosie’s total savings (in dollars) is best represented by the expression 120+30m$.

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