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18 Sep 2022, 03:51
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B
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Difficulty:
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Question Stats:
88% (00:51) correct
12%
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A book store charges $21 for the first book ordered in the store, and $16 for each additional book. If Larry bought x books in the store, how much did he pay in terms of x ?
A. 16x - 5
B. 16x + 5
C. 16x + 16
D. 21x + 5
E. 21x + 16
A. 16x - 5
B. 16x + 5
C. 16x + 16
D. 21x + 5
E. 21x + 16
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18 Mar 2024, 00:26
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Official Solution:
A bookstore charges $21 for the first book ordered in the store, and $16 for each additional book. If Larry bought \(x\) books in the store, how much did he pay in terms of \(x\)?
A. \(16x - 5\)
B. \(16x + 5\)
C. \(16x + 16\)
D. \(21x + 5\)
E. \(21x + 16\)
According to the stem, Larry would be charged $21 for the first book and $16 for each of the additional \(x-1\) books. Thus, he'd be charged a total of \(21*1 + 16(x - 1) = 16x + 5\) dollars.
Answer: B
A bookstore charges $21 for the first book ordered in the store, and $16 for each additional book. If Larry bought \(x\) books in the store, how much did he pay in terms of \(x\)?
A. \(16x - 5\)
B. \(16x + 5\)
C. \(16x + 16\)
D. \(21x + 5\)
E. \(21x + 16\)
According to the stem, Larry would be charged $21 for the first book and $16 for each of the additional \(x-1\) books. Thus, he'd be charged a total of \(21*1 + 16(x - 1) = 16x + 5\) dollars.
Answer: B
General Discussion
18 Sep 2022, 04:10
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Let the total number of books = x
First book costs 21
Remaining books (Total - 1) = x - 1 = 16 each
Total price = 21 + 16(x - 1) = 21 + 16x - 16 = 16x + 5
Answer - B
Posted from my mobile device
First book costs 21
Remaining books (Total - 1) = x - 1 = 16 each
Total price = 21 + 16(x - 1) = 21 + 16x - 16 = 16x + 5
Answer - B
Posted from my mobile device
