Question

if x varies directly as 5y,x=10 when y=2 find x when y=7​

Answer 1

Answer: 35

Explanation :

5y = kx

1st case :

5×2=k × 10

10 = 10k

k = 1

Now,

5y=kx

5 × 7 = 1 × x

35 =x

Answer 2

Answer:

35

Step-by-step explanation:

5y=ks

5×2=k×10

10=10k

k=1