15.4=5n-4

type the two consecutive integers between which the solution lies.
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1 Answer

15.4=5n-4,

15.4+4=5n,

19.4=5n, same as 5n=19.4,

n=19.4/5=19.40/5=3.88 so n lies between integers 3 and 4.

Or, you could say that, because 19.4 lies between 15 and 20 (nearest multiples of 5), n must lie between 15/5=3 and 20/5=4, that is, between 3 and 4.

by Top Rated User (1.1m points)

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