Question

The variables x and y vary directly. Given x = 5 and y = 3, write an equation that relates the variables and find y when x = 2.
Answer
y = 15x; y = 30
y = 5/3 x; y = 10/3
y= 0.6x; x = 1.2
y = 15/x; y = 7.5

Answer 1

Since variables x and y vary directly,
\[\frac{x_{1}}{y_{1}} = \frac{x_2}{y_2}\]\[\frac{5}{3} = \frac{2}{y}\] Can you continue?

Answer 2

no is it cross multiply

Answer 3

Yes. What would you get then?

Answer 4

its B

Answer 5

No... Can you show your workings?

Answer 6

i just got 10/3

Answer 7

Steps?

Answer 8

idk im stumped