Two teams can be selected out of 10 teams in C(10,2) = 10!/8! 2! = 45 ways
=> If each team plays exactly 3 matches with each other team, number of matches will be 45 x 3 = 135.
:-)
Answer:
0.2 seconds
Step-by-step explanation:
The graph of b(t) = -16t^2 + 5t + 15 is a parabola opening downward. The maximum value of b(t) occurs at the vertex. The t-coordinate of the vertex is t = -5 / (2(-16)) = 5/32 = 0.15625 sec ≈ 0.2 sec.
Answer: 5/19
Step-by-step explanation:
(probability of blue chip)/(total chips) x (probability of red chip)/(new total chips)
10/20 x 10/19 = 100/380
simplify: 5/19
The answers A and D can be true for some people but are not true generally: they depend on the people's natural organization skills.
Answer B is wrong: one needs to also consider their income, spending, savings, etc...
the correct answer is the following one: <span>C. frequently discovers the complexity of his or her financial situation. </span>
Let x = Initial Price
If we increase x by 5%, we are adding 0.05x
Therefore, the new price = x + 0.05x = 1.05x
If the ticket has increased by £2.30, £2.30 is 5% of the initial price, or 0.05x
0.05x = 2.30
x = 2.30/0.05
x = 46
Therefore, the price of the ticket before the increase was £46
You can also check this backwards by doing 46*0.05 = 2.30