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If P=$30 + 10uand P=$120-15u Solve for p

If P=$30 + 10uand P=$120-15u Solve for p
asked 76.2k views
3 votes
If P=$30 + 10uand P=$120-15u Solve for p

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User Lufc
by
7.2k points

1 Answer

1 vote

To solve for u, we substitute the first equation in the second one.


\begin{gathered} 120-15u=30+10u \\ 120-30=10u+15u \\ 25u=90 \\ u=(90)/(25)=3.6 \end{gathered}

Now, we find P.


\begin{gathered} P=30+10(3.6)=30+36 \\ P=66 \end{gathered}

Therefore, P is 66.

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User Mike Buckbee
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