The answer is 59,280 . To find you multiply 40 x 39 x 30 which 59,280
Answer:
3 cookies
Step-by-step explanation:
she has 12 cookies and 4 friends
12 / 4 = 3 cookies for each friend
Ok
2x + y - z = 7
-2y +3z = -15
x + 2y - 5z = 17
combine 2nd 3rd
x - 2z = 2
x = 2z + 2
double first statement
4x + 2y - 2z = 14
combine with second statement
4x + z = -1
substitute 2z + 2 for x
8z + 8 + z = -1
combine like terms
9z + 8 = -1
sub 8 from both sides
9z = -9
divide both sides by 9
z = -1
substitute -1 for z in second statement
-2y - 3 = -15
add 3 to both sides
-2y = -12
divide both sides by -2
y = 6
substitute -1 for z into the fifth statement
x = -2 + 2
x = 0
Answer:
this can be solved by simple unitary method
Answer:
c
Step-by-step explanation:
