385,891 views
12 votes
12 votes
Given that y varies directly with x, and y=28 when x=7 What is y when x=52

Given that y varies directly with x, and y=28 when x=7 What is y when x=52-example-1
User Avitenberg
by
2.5k points

1 Answer

17 votes
17 votes

Answer:

y=208

Step-by-step explanation:

If y varies directly with x, the equation of variation is:


y=kx

When y=28 and x=7


\begin{gathered} 28=7k \\ k=(28)/(7) \\ k=4 \end{gathered}

The equation connecting y and x is:


y=4x

Therefore, when x=52


\begin{gathered} y=4*52 \\ y=208 \end{gathered}

User Xxi
by
3.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.