Question

9:4 as unit ratio
A number is greater than or equal to -3and less than or equal to 0

Answer 1

Answer:

$1)\ 9 : 4 = 2.25 : 1$

$2)\ -3 \le x \le 0$

Step-by-step explanation:

Solving (1):

$9 : 4$

Express as a unit ratio

This implies that, the second term must be 1. So, divide by 4

$9 : 4 = 9/4 : 4/4$

$9 : 4 = 2.25 : 1$

Solving (2):

Let the number be x.

x $is\ greater\ than$ or equal to -3 means:

$x \ge -3$

x $is\ less\ than$ or equal to 0 means:

$x \le 0$

So, we have:

$x \ge -3$ and $x \le 0$

Rewrite as:

$-3 \le x$ and $x \le 0$

Write together:

$-3 \le x \le 0$