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frutty [35]
1 year ago
13

Find the number that makes the ratio equivalent to 4:5. 28:_

Mathematics
1 answer:
Olin [163]1 year ago
3 0

Answer:

7

Step-by-step explanation:4*7=28

Therefore 5*7=35

28:35= 4:5

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4n^2-3n-7=0\\ \\ a=4, \ \ b=-3 \ \ c=-7\\ \\ \Delta = b^{2}-4ac = (-3)^{2}-4*4* (-7)= 9+112=121

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