\[f(x)=\frac{9x^2+9x-18}{3x+6}\] is what you mean?
He built 15 robots (4 + 8 + 3) = 15
he built an average of 5 robots per day....(4 + 8 + 3) / 3 = 15/3 = 5
Answer:
3/4 of an hour
Step-by-step explanation:
To find the leftover time, subtract the total allotted time by the time used.
First make sure they have common denominators.
1 1/2 = 3/2 = 6/4
6/4 - 3/4 = 3/4
Tessa has 3/4 of an hour left.
<h3>
Answer: 3 socks</h3>
Reason:
You could get lucky to pull out 2 blue socks or 2 black socks in a row. But you could also get unlucky to have 1 blue + 1 black, or the other way around.
That third sock selected will guarantee you picked at least 2 of the same color. This is simply because there aren't any other colors left to pick from.
For more information, check out the Pigeonhole Principle.