In a competition a school awarded medals i different categories, 36 medals in dance, 12 medals in dramatics and 18 medals in music. If these medals went a total of 45 persons and only 4 persons got medals in all thr three categories, hk many received medals in exactly two of these categories?​

Slavery played the central role during the American Civil War. The primary catalyst forsecession was slavery, especially Southern political leaders' resistance to attempts by Northern antislavery political forces to block the expansion of slavery into the western territories.

4.82 Estimated 4 people

Step-by-step explanation:

Total number of medals= 12+ 36+18= 66

66/45x65/44x64/43x63/42= 4.819955

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

mean, 40.6

step-by-step explanation: