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

260,044 views

23 votes

Vlad Havriuk asked Nov 15, 2023

2.9k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

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

2.9k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers