3 years ago

Solve the problem 5/n = 1.5/ 1.8

2 answers:

6 0

$\frac{5}{n} = \frac{1.5}{1.8} \ \ \ \Leftrightarrow\ \ \ 5\cdot1.8=1.5\cdot n \ \ \ \Leftrightarrow\ \ \ 9=1.5n\ /:1.5\\\\n=6$

5 0

5/n=(3/2)/(5/5+4/5)

5/n=(3/2)/(9/5)

5/n=(3/2)*(5/9)

5/n=15/18=5/6

5/n=5/6

30/n=5

5n=30

Therefore: n=6.

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