Asked by Anonymous
During a sale, notebooks were sold at a 20% discount. Nat wanted to buy 20 notebooks but was short of $26.20. After borrowing $6.36 from him mother, he had enough to buy exactly 12 notebooks.
(a) What is the usual price of the notebook?
(b) How much money does Nat have at first?
(a) What is the usual price of the notebook?
(b) How much money does Nat have at first?
Answers
Answered by
Anonymous
(a) x: the usual price of the notebooks
0.8x * (20 - 12) = 26.20 - 6.36
0.8x * 8 = 19.84
x = 19.84 / 6.4 = 3.1
So the answer is $3.1
(b) 3.1 * 0.8 * 20 - 26.2
0.8x * (20 - 12) = 26.20 - 6.36
0.8x * 8 = 19.84
x = 19.84 / 6.4 = 3.1
So the answer is $3.1
(b) 3.1 * 0.8 * 20 - 26.2
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