.
Sydney subscribes to an online company that allows her to
download electronic books. Her subscription costs a flat fee of P30
for up to 10 downloads each month. For each download over 10,
there is an additional charge per download.
1. During the month of Sept. She downloaded 22 books and was charged P75. How much does each additional download cost?
2. In Oct., she was incorrectly charged P67.50 for 18 books. How much should she have been charged?
3. If she received a bill for P101.25, how many books did she download?
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These problems are so SIMPLE, that deserve to be solved in one line EACH.
(1) How much does each additional download cost = = = P 3.75. ANSWER
(2) How much should she have been charged = 30 + (18-10)*3.75 = P 60.00. ANSWER
(3) How many books did she download = = 29. ANSWER
All questions are answered --- the problem is just solved.
The formulas in n.n. 1, 2 and 3 are SELF-EXPLANATORY.
If you have questions. look into this formulas attentively and listen what they will tell you.