Elizabeth earns $ x daily and spends $ y per week. What are her savings of 2 weeks?
Answer:
14x - 2y
- Number of days in one week = 7 days
Therefore, the number of days in 2 weeks = 2 × 7
= 14 days - Amount earned by Elizabeth in one day = $ x
Therefore, the amount earned by her in 2 weeks, or 14 days = $ 14x - Amount spent by Elizabeth in one week = $ y
Therefore, the amount spent by her in 2 weeks = $ 2y - Thus, Elizabeth's 2 weeks saving = Amount earned in 2 weeks - Amount spent in 2 weeks
= $ 14x - $ 2y
