Question

If three times a number plus four is no more than four times the number minus one, which of the

following are true? Let z represent the number.
Z>5
Z25
ZS5
The number is at least 5.
The number is at most 5.

Answer 1

The number is at least 5

Answer 2

Explanation:

3z+4≤4z-1

3z-4z≤-1-4

-z≤-5

z≥5

sol.

The number is at least 5