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KatRina [158]
3 years ago
5

Joel bought 8 books. Some books cost $13 each and some cost $17 each. In all, he spent $128. Which system of linear equations re

presents the given situation?
Mathematics
1 answer:
Phantasy [73]3 years ago
4 0
If there are x $13 each books and y $17 each books, then we can build the following equations:
x + y = 8    (or y = 8 - x)
13x + 17y = 128   (or y = 128/17 - 13x/17)
:)
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