If X Varies Directy As Y Ang X=35 When Y=7 What Is The Value Of Y When X=25

If x varies directy as y ang x=35 when y=7 what is the value of y when x=25

 

Answer: 5

Step-by-step explanation:

Direct variation.

x = ky

Given:

x = 35\\ y = 7

Solution:

Finding the constant (k).

x = ky \\ 35 = k(7) \\ 35 = 7k \\ \frac{35}{7} = \frac{7k}{7} \\ 5= k

Finding y when x = 25.

x = ky\\ 25 = (5)y\\ 25 = 5y\\ \frac{25}{5} = \frac{5y}{5} \\ \boxed{\boxed{5 = y}}


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