Answer:
53
Step-by-step explanation:
We can solve the bits in the operation like this...starting with
2x4 = 8
+
5x3 = 15
(we can skip over 8x for now and add the next number)
+
24
= 8+15+24
= 47
so now we have:
(47+8x) ÷ (x+2)
let's get rid of the numbers on the right side, so we subtract 2 from both sides. now we have
(45+8x) ÷ (x)
now we want our x on the left to move to the x on the right, so we'll divide everything by x
we get (45+8) ÷ x/x which = (53) ÷ x/x and we know x/x = 1, so we have
53 ÷ 1, and that = our answer, which is 52
Answer:
x= 7/4
(in decimal form) x= 1.75
Answer:
your answer is -35.
Step-by-step explanation:
let the first 7 terms be 1,2,3,4,5,6, and 7.
we have ,
general term t_n = -3n +7 ,then
t_1 = -3*1 +7
= -3+7
= 4
t_2 = -3*2 +7
= -6 +7
= 1
t_3 = -3*3 +7
= -9+7
= -2
t_4 = -3*4 +7
= -12+7
= -5
t_5 = -3*5 +7
= -15+7
= -8
t_6 = -3*6 +7
= -18+7
= -11
t_7 = -3*7 +7
= -21+7
= -14
Now, the sum of first seven terms is
4 + 1 + (-2) + (-5) + (-8) + (-11) + (-14)
= 5 -2 - 5 - 8 - 11 - 14
= -35
Answer:
Step-by-step explanation: