Question

The variables x and y are related proportionally. When x = 4, y = 14. Find y when x = 40.

When x = 40, y =

Answer 1

y= 140

Explanation:

if they are directly proportional, that means when one increases/decreases the other does as well.

x increased by multiplying itself by ten. Like before, since they are both directly proportional that means that y is multiplied by 10.

14*10= 140, y=140

Answer 2

See Below

Explanation:

Take the the given information and compare to the question being asked

`(y)/(x)`. So insert the x & y's of both equations (ima do y over x to make it easier)

`(14)/(4) =(y)/(40)`

divide 14/4

3.5 =
`(y)/(40)`

then multiply both sides by 40 to isolate y

140 = y

Check by reinserting 140 and divide it by 40