Question

Help with this problem please !!!!!

Answer 1

The answer is k = 28

Explanation:

`(12)/(k)=(18)/(42)`

Cross multiply. Remember,
`(a)/(b)=(c)/(d)` ⇒ ad=bc

`(12)/(k)=(18)/(42)` ⇒ k·18=12·42

k·18=12·42

Simplify

18k=504

÷18 on both sides

k=504÷18

Simplify

k=28

Answer 2

28

Explanation:

Cross multiply

18k = 12 x 42

18 k = 504

k = 504/18

k = 28