-6x + 3 ≥ 21
Subtract 3 from both sides.
-6x ≥ 21 - 3
Simplify.
-6x ≥ 18
Divide both sides by -6.
Remember, when dividing or multiplying by a negative number, you must switch the signs.
x ≤ 18 / -6
Simplify.
x ≤ -3
So, your answer is D) x ≤ -3
~Hope I helped!~
The half-life of the radioactive substance can be determined through teh equation ln 2 = k (t 1/2) where k is equal to ln (1/(1-0.58)) / 3. Hence t 1/2 is equal to 2.40 days. To decay to 10% of the original amount, ln (1/0.90) / ( ln2) / 2.40, time is equal to 0.37 days.
Answer:
f
Step-by-step explanation:
maybe I hope it helps :)
Amy can wash 75 cars in 12 hours, Roger can wash 64 cars in 12 hours.
so therefore 75+64 =139
together they can wash 139 cars in 12 hours