Question

If x varies directly as y, and x = 35 when y=5, find x when y = 7.

Answer 1

x varies directly as y
so we can write
x= k y

Answer 2

x = 35 when y=5
so 35 = k*5
hence k= 7
now we have
x= 7y
so when y=7 x=7*7=49

Answer 3

so x = 49 or ky?

Answer 4

x = 49

Answer 5

Awesome! Thank you!

Answer 6

yw