Question

( PLEASE HELP ASAP, 70 POINTS )

If ab = c , c = kb , and bc is not equal to 0, which of the following is equal to k?

A. 1/a
B . a - 1
C. a
D. a + 1

Answer 1

ab=c,c=kb

Explanation:

compare the first equation to the second one

k=a

Answer 2

C. a

Explanation:

We are given that ab = c and c = kb, where bc is not equal to 0.

We can substitute the second equation into the first equation to get ab = kb.

This means that b is a factor of a, and since bc is not equal to 0, b is not equal to 0.

Therefore, we can divide both sides of the equation by b to get a = k.

Therefore, k =a.

Solution in steps:

Given:

ab = c , c = kb

Substitute c = kb into ab = c:

ab = kb

Divide both side by b.

`\sf (ab)/(b)=(kb)/(b)`

a = k

Therefore, k = a.