Answer:
35
Step-by-step explanation:
Steps
1. 5x + 105 = 8x because you distributed the 5
2. 105 = 3x because you subtract the 5x on both sides
3. 105/3 = x because you divide the 3 and 105/3 is 35
Hey there! I'm happy to help!
A proportional equation follows the form y=kx, where k is the constant of proportionality.
Answer 1 is wrong because there is something added.
2 is correct as it follows this format.
3 is incorrect as it does not follow this format.
4 is correct as it follows the format (k is 1)
5 Is correct because it follows this format.
6 is not correct because there is a 1 added, which does not follow the format.
Therefore, the correct answers are 2, 4, and 5.
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Notice that if you go forward, the common ratio is 5. Each new term is found by mult. the previous term by 5.
If, on the other hand, you go backwards (terms decreasing), then you divide a term to find what the previous term was.
Here, divide 1 by 5 to find the first term. It's 1/5.
