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erastova [34]
3 years ago
12

If (3+y)/y=7, then y= Please help :)

Mathematics
2 answers:
lawyer [7]3 years ago
8 0
\frac{3 + y}{y} = 7 \\ \\ 3 +y = 7y \\ \\ 1y - 7y = -3 \\ \\ -6y = -3 \\ \\ y =   \frac{-3}{-6} =   \frac{1}{2} \\ \\ y =   \frac{1}{2}
Makovka662 [10]3 years ago
3 0
\frac{\big{3+y}}{\big{y}}=7\ \ \ \Rightarrow\ \ \  D:\ y \neq 0\\\\ \frac{\big{3+y}}{\big{y}}\cdot y=7\cdot y\\\\3+y=7y\\\\y-7y=-3\\\\-6y=-3\ /:(-6)\\\\y= \frac{3}{6} \\\\y= \frac{1}{2} \ \in\ D
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<h3><u>Solution:</u></h3>

Given that, You invested money in two funds.  

Last year, the first fund paid a dividend of 8% and the second a dividend of 5%, and you received a total of $1330.  

This year, the first fund paid a 12% dividend and the second only 2%, and you received a total of $1500.

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