Question

If k = 400 and y = 2, solve the given equation for x.

y=kx

Responses
A 20
B 100
C 200
D 400
E 800

Answer 1

x = 1/200

Explanation:

We're asked to solve the following equation for x, given that k = 400 and

y = 2:

⇒ y = kx

So, we substitute 400 for k, and 2 for y:

⇒ 2 = 400x

We should now isolate our x. To do that, we divide both sides by 400:

⇒ 2/400 = x

Simplify our result:

⇒ 1/200 = x