Answer:

Step-by-step explanation:




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Corresponding measures have the same ratio.
.. (x -1)/4 = (2x +1)/10
.. 5(x -1) = 2(2x +1) . . . . . . multiply by 20
.. 5x -5 = 4x +2 . . . . . . . . eliminate parentheses
.. x = 7 . . . . . . . . . . . . . . . add 5 -4x
x = 7
Answer: y=−5/4x−5
Step-by-step explanation:
1. 1/6
2. 1/8
3. 80%
4. 1/5
5. 2/8 or 25%