Sandy is given a total of $30 to spend from Monday to Friday. Every day, she spends $4 on food, $q on transport and saves the rest. How much does she save each week?

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Worked solution

11

1. Find the total amount spent each day

Amount spent per day = $4+$q=$(4+q)\char36{}4 + \char36{}q = \char36{}(4 + q)

2. Find the total amount spent from Monday to Friday (5 days)

Total spent in 5 days = 5×(4+q)=$(20+5q)5 \times (4 + q) = \char36{}(20 + 5q)

3. Calculate the total amount saved

Amount saved = Total given - Total spent
Amount saved = 30−(20+5q)=30−20−5q=$(10−5q)30 - (20 + 5q) = 30 - 20 - 5q = \char36{}(10 - 5q)

Answer

$(10 - 5q) (Option 4)

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