There are 18 chairs in a row (marked 1,2,..., 18) to seat 6 chemistry majors, 5 AMS majors and 7 music majors. (There are no double majors.) Find the number of possible seatings for each of the following:(a). The Chemistry majors must sit in the first 6 seats.(b). The Chemistry majors can not sit in the first 6 seats.(c). The students with the same majors must sit in a "block" (meaning each major sits together).

(a) (b) (c)

Step-by-step explanation:

GIVEN: There are chairs in a row (marked ) to seat chemistry majors, AMS majors and music majors. (There are no double majors).

TO FIND: Find the number of possible seating for each of the following:(a). The Chemistry majors must sit in the first seats.(b). The Chemistry majors can not sit in the first seats.(c). The students with the same majors must sit in a "block" (meaning each major sits together).

SOLUTION:

(a)

as chemistry major first seats, and rest will sit on last seats.

total number of possible seating

(b)

as chemistry major last seats, and rest will sit on first seats.

total number of possible seating

(c)

if the students with the same majors must sit in a block.

then total number of possible seating

60.9774

step-by-step explanation:

because when you add 47.6 plus 7.32 equals 54.92

and when you add .0574 + 6= 6.0574

and when you add 54.92 and 6.0574 you get the answer of 60.9774.

plzz mark brainlest last one got deleted. cause i didn't explain it but i did but i understand what the mod meant

you could deduce the conclusion directly using the facts pertaining to the specific situation.

hope this .