5.) -4
6.) 3
7.) 4
8.) it would be your other choice, i can’t see what it says.
Answer:
A -6 < x ≤ -3
Step-by-step explanation:
21 ≤ - 3(x - 4) < 30
Divide all parts by -3. Remember that flips the inequalities
21/-3 ≥ - 3/-3 (x - 4) > 30/-3
-7 ≥ (x - 4) > -10
Add 4 to all sides
-7+4 ≥ x - 4+4 > -10+4
-3 ≥ x > -6
Rearranging the order
-6 < x ≤ -3
1/3 of the classroom is mopped in five minutes, so the whole classroom (or one classroom) is mopped in 15 minutes
If it is 41/3, then the answer would be 13 and 2/3. If it is 4/13, then there would be no mixed number. Sorry. It is hard to tell because there is no slash to represent where the numerator and the denominator is.
8(n + -4) > 12
8n +-32 > 12
12 + 32 equals 44
8n > 44
44 divided by 8 equals 5.5
So the answer is greater than 5.5
