Answered

Welcome to Westonci.ca, your ultimate destination for finding answers to a wide range of questions from experts. Explore a wealth of knowledge from professionals across different disciplines on our comprehensive platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

Suppose y varies directly as x and y= 21 when x= 3 find x when y=42
what is an equation for it

Sagot :

anijlin
when y = 21, x = 3

when y and x vary directly, that means there is something that you multipy x that gets you to y. 

to solve for this number, you divide y by x. 

21 ÷ 3 = 7

this means to go from x to y, you multiply x by 7. 

7x = y

we can use this to solve for x when y = 42

7x = 42
divide both sides by 7
x = 6 

when y = 42, x = 6


ScienceEllis
X=6.
When y=21, x=3. This is 7:1.
When y=42, x=6. This is 7:1.
Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. We appreciate your time. Please come back anytime for the latest information and answers to your questions. Westonci.ca is committed to providing accurate answers. Come back soon for more trustworthy information.