Question

the sum of three consecutive integers is 21.What are they? Use the variable n for the value of the smallest integer
A. n+1+n+2+3=21;5,6,7
B.n+n+1+n+2=21;6,7,8
C.n+n+2+n+4=21;5,7,9
D.n+n+1+n+2=21;8,9,10
PLEASE HELP

Answer 1

Well, it can't be C because 5, 7, and 9 are not consecutive integers.
It can't be A because 5+6+7 is 18 NOT 21
It can't be D because 8 + 9 + 10=27
Must be B. Let's check it out., Are 6, 7, and 8 consecutive integers? Does 6+7+8 = 21?

Answer 2

yeaa it does

Answer 3

but dont u need to add 1 and 2

Answer 4

then it equals 24

Answer 5

The first part is the equation you could use to get the answer. The second part is the answer.

Answer 6

okk thanks