Let N be the price of a notebook and B be the price of a bookbag. Then, the first sentence tells us that:
N + B = 29
The second sentence tells us that:
2N+3B = 83
Now you just have to solve the system of equations. Are you able to solve from there?
Stephen M.
tutor
Sure, there are several ways to do this. If we multiply the first equation by 2, we get:
2N+2B = 58
If we subtract this from the second equation, we get
(2N+3B) - (2N+2B) = 83 - 58
B = 25
Then we can substitute into the first equation to get:
N + 25 = 29
N = 29 - 25 = 4
Does that all make sense?
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01/16/17
Layla J.
Yes, so what would the final answer be?
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01/16/17
Stephen M.
tutor
Well, we defined our variables at the beginning. N was the price of a notebook and N=4. So, a notebook is $4. B is the price of a bookbag and B = 25. So a bookbag is $25.
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01/16/17
Layla J.
01/16/17