Use the rational root theorem:
The dividers of
The dividers of
Therefore, check the following rational numbers: +-
Compute
Cancel the common factor:
Find the 5th term of the arithmetic sequence 10,5,0....
1 answer:
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Use the rational root theorem:
The dividers of
The dividers of
Therefore, check the following rational numbers: +-
Compute
Cancel the common factor:
Let:
x = Chemistry textbooks sold
y = Physics textbooks sold
The textbook store sold a combined total of 260, so:
The number of chemistry books sold was three times the number of physics textbooks sold, so:
Let:
Replace (2) into (1):
Replace the value of y into (2):