This is a problem involving permutation, in which, order matters. Since these four beads to be together, we consider it 1 group. So, in essence we have 7 elements to work with, we have 6 individual beads, and 1 group of 4 that have to be together.
In order to do this, let us use the formula for permutation,
In order to order the 7 elements, we will have to get the value of as we are arranging 7 out of 7. And don't forget that we can also arrange the four particular beads in the group, that is computed as .
Therefore, there are 120,960 ways to arrange the ten beads.
a = l x w
a / l = (l x w) / l
a / l = w
w = a / l = 108 / 12
w = 9 inches
next , the one inch border reduces the length and the width each by 2 inches, so l and w now equal 10 and 7
a = l x w = 10 x 7 = 70 sq inches left for painting
ted's harvested - his brother's harvested
(50 3/4) - (38 5/6)
(203/4) - (233/6)
lcd: 12
(609/12) - (466/12)
143/12
11 11/12
answer: 11 11/12 kilos
answer:
Rule: Subtract 775 or Add -775
1. -687
2. 1,551
answer:
120,960
Step-by-step explanation:
This is a problem involving permutation, in which, order matters. Since these four beads to be together, we consider it 1 group. So, in essence we have 7 elements to work with, we have 6 individual beads, and 1 group of 4 that have to be together.
In order to do this, let us use the formula for permutation,
In order to order the 7 elements, we will have to get the value of as we are arranging 7 out of 7. And don't forget that we can also arrange the four particular beads in the group, that is computed as .
Therefore, there are 120,960 ways to arrange the ten beads.
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