The bio students can be arranged in (5 · 4 · 3 · 2 · 1) = 120 different ways.
For each of those . . .
The chem students can be arranged in (5 · 4 · 3 · 2 · 1) = 120 different ways.
For each of those . . .
The physics students can be arranged in (2 · 1) different ways.
For each of those . . .
The subjects can be arranged in (3 · 2 · 1) = 6 different ways.
The whole incredibly boring line-up of presentations
can be arranged in
(120 · 120 · 2 · 6) = 172,800 different ways .
There are 11 natural numbers. Natural numbers are whole positive numbers including 0
Answer:
B: -a > -b
Step-by-step explanation:
a = 1, -a = -1
b = 3, -a = -3
-1 > -3
Therefore, -a > -b
<span><span>1.
</span>There are many ways of solving this kind of
division problem. But I will showing the easiest one.
15.75 divided by 0.25
=> In every 1 whole number, there are 4 of 0.25
Now we have 15 as whole number so simply multiply 15 x 4
=> 15 * 4 = 60, there are 60 pieces of .025s in 15.
=> 0.75 has 3 0.25s
Now, let’s add 60 + 3 = 63, the answer is 63.
There are 63 pieces of 0.25 in 15.75.
Let’s check
=> 15.75 / 0.25
=> 63</span>
Answer:
12 blue necklaces + 12 red necklaces = 24 necklaces. He will have 1 blue bead left over and 1 red bead left over.
Step-by-step explanation:
37/3 = 12.333 or 12 r1
25/2= 12.5 or 12 r1
1+1=2