Answer: y = -3x + 4
Step-by-step explanation:
subtract the 6x on both sides (2y = -6x + 8)
divide on both sides by 2 to isolate y ( y = -3x + 4)
Done :)
Answer:
Step-by-step explanation:
x -4 , 3x-11 , 5x - 18 ,.......
first term = a = x -4
Common difference (d) = second term - first term
= 3x -11 - [ x - 4]
= 3x - 11 - x + 4
= 3x - x - 11 + 4
= 2x - 7
nth term = a + (n-1)*d
12th term = x - 4 + 11*(2x - 7)
= x - 4 + 11*2x - 7 *11
= x - 4 + 22x - 77
=x + 22x - 4 - 77
= 23x - 81
Ratios use division to compare two or more values
Answer:
Step-by-step explanation:
This is a geometric progression.
Givens
a1 = 7
r = 6
Formula
a_n = a1 * r^(n - 1)
a_n = 7 (6)^(n - 1)
Sample
Try n = 3
a_3 = 7*(6)^(3-1)
a_3 = 7*(6)^2
a_3 = 7 * 36
.a_3 = 252 which is exactly what it should be.
Answer:
66
Step-by-step explanation:
The total number of lockers that were full in the morning was 72. Since 6 were empty in the afternoon, 72-6 = 66 full lockers