Answer:
45, 75
Step-by-step explanation:
3+5 = 8
120 / 8 = 15
15 x 3 = 45
15 x 5 = 75
The explicit formula of the sequence is given by a_n = -4n(n-1).
We have to find the first five terms of the sequence.
The first term:
The second term:
The third sum:
The fourth term:
The fifth term:
Thus, option D is correct.
Answer:
55
Step-by-step explanation:
The total is 2(2x+15) +2x=360.
4x+30+2x=360
6x+30=360
6x=330
x=55
Answer:
50x = 300
Step-by-step explanation:
The statement says that you have a total amount of $300 and that you decide to spend $50 each week and an equation for this would have to indicate that $50 that is the amount you budget to spend each week multiplied for x number of weeks would be equal to $300 that is the total amount you have. Because of that, the equation is: 50x=300 .
The answer is 19440. For this, do each step in order like this, -2×3=-6, -6×-4=24, and so on.