Answer:
144 ways
Step-by-step explanation:
Let's think of the 3 persons sitting together as "one". So essentially we have 3 + "1" = "4" persons to arrange.
THey can be arranged in 4! ways, which is:
4! = 4 * 3 * 2 * 1 = 24 ways
Now, the 3 persons themselves can be arranged in 3! ways, which is:
3! = 3 * 2 * 1 = 6 ways
Total ways = 4! * 3! = 24 * 6 = 144 ways
Answer:
this sequence is geometrical sequence
and it's formula is
![y = a {r}^{n} \\ here \: a \: is \: first \: number \: is \: equal \: 1 \\ and \: the \: ratio \: is \: r \: is \: equal \: - 3 \\ y = 1 \times {( - 3)}^{n}](https://tex.z-dn.net/?f=y%20%3D%20a%20%7Br%7D%5E%7Bn%7D%20%20%5C%5C%20here%20%5C%3A%20a%20%5C%3A%20is%20%5C%3A%20first%20%5C%3A%20number%20%5C%3A%20is%20%5C%3A%20equal%20%5C%3A%201%20%5C%5C%20and%20%5C%3A%20the%20%5C%3A%20ratio%20%5C%3A%20is%20%5C%3A%20r%20%5C%3A%20is%20%5C%3A%20equal%20%5C%3A%20%20-%203%20%5C%5C%20y%20%3D%201%20%5Ctimes%20%20%7B%28%20-%203%29%7D%5E%7Bn%7D%20)
Answer:
516 students preferred pizza
Step-by-step explanation:
To solve this problem we have to calculate 60% of the total students (860)
To get the percentage of a number we have to divide by 100 and then multiply by the number it indicates, in this case 60
860 %60 = 860 / 100 * 60
860 / 100 * 60 =
8.6 * 60 = 516
60% of 860 is 516
this means that for Friday lunches 516 students preferred pizza
Answer:
She can make 55 bracelets
Step-by-step explanation:
We have the correct question as follows;
Ariel bought a 15 1/6 foot long string, and a 12 1/3 foot long string. If each bracelet requires 1/2 of a foot long string, how many bracelets can Ariel make
we have the solution as follows
Firstly, we need to find the total length of the strings bought
We can get this by adding what was bought
That would be;
15 1/6 + 12 1/3
= 91/6 + 37/3
= (91 + 74)/6 = 27 1/2 ft
From the question, each bracelet requires 1/2 ft long
so the number of 1/2 ft long bracelets we can find will be;
27 1/2 divided by 1/2
= 55/2 * 2/1
= 55
40% if you are asking for percent that’s you answer