If a,b, and c are numbers such that ab+ac=60, what is the value of a/b(2b+2c)-15a) 5b) 25c) 70d) 105

Vlad Havriuk asked Nov 15, 2023

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Vlad Havriuk asked Nov 15, 2023

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17 votes

Given that

We want to find the value of

From the first equation, we have that:

$\begin{gathered} a(b+c)=60 \\ \\ b+c=(60)/(a) \end{gathered}$

From the second equation, we have:

Comparing the last two equations, we have:

Pritesh Bhoi answered Nov 21, 2023

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