Math Problem Statement
Mary has saved 17.50 i the past 3 weeks. at this rate, how much will she save in 15 weeks?
Solution
To determine how much Mary will save in 15 weeks, we first need to find her weekly savings rate.
Mary saved $17.50 in 3 weeks. Therefore, her weekly savings rate is: So, Mary saves approximately $5.83 per week.
Now, to find out how much she will save in 15 weeks, we multiply her weekly savings by 15:
Thus, Mary will save $87.45 in 15 weeks.
Would you like more details or have any questions about this? Here are 5 related questions for practice:
- If Mary saved $20 in 4 weeks, what would her savings be in 12 weeks?
- If Mary increased her savings by $1 per week, how much would she save in 15 weeks?
- What is the total amount saved if Mary saved $5 every week for 20 weeks?
- If Mary saved $30 in 6 weeks, what is her weekly savings rate?
- How much will Mary save in 10 weeks if her savings rate is $6.25 per week?
Tip: For questions involving consistent rates, multiplying the rate by the number of periods is key to finding the total.
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Math Problem Analysis
Mathematical Concepts
Rates
Proportions
Multiplication
Formulas
Weekly savings rate = Total savings / Number of weeks
Total savings = Weekly savings rate * Number of weeks
Theorems
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Suitable Grade Level
Grades 5-7
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