The answer is a. 9.7×109g/min
Error is between steps 4 and 5. It should say:
Step 4: -9x < 27
Now divide by -9
Step 5: x > -3
Note that the inequality changes direction.
When you mean multiply or divide an inequality by a negative number, the inequality changes direction.
For example:
4 < 5
Multiply by -1:
-4 > -5
Another example:
-5 < 0
5 > 0
Answer:
2km
Step-by-step explanation:
8km/h×15minutes÷60minutes=2km
115:55 bc if you divide them both you fat the same answer which is 2