We have:
648 : 2 = 324 (even number)
324 : 2 = 162 (even number)
162 : 2 = 81 (odd number)
81 : 3 = 27 (odd number)
27 : 3 = 9 (odd number)
9 : 3 = 3 (odd number)
3 : 3 = 1
So a = 3 and b = 4 - answer C.
Answer:
x = 1; y = 5
Step-by-step explanation:
-2x + 3y = 13
;
y = 7x - 2
Since the second equation is already solved for y, substitute y of the first equation with 7x - 2.
-2x + 3y = 13
-2x + 3(7x - 2) = 13
-2x + 21x - 6 = 13
19x - 6 = 13
19x = 19
x = 1
Now substitute x of the second equation with 1 and solve for y.
y = 7x - 2
y = 7(1) - 2
y = 7 - 2
y = 5
Solution: x = 1; y = 5
Answer:
The nth number is the previous one minus 27.
54 = 81 - 27
27 = 54 - 27
0 = 27 - 27
And so on....
Answer:
1.5
Step-by-step explanation:
r=2Rcosθ
(x-1.5)² y²=2.25
The centre of the circle is (1.5 , 0) The radius is 1.5
Ok....we need lowest common multiple of 0.40, 0.50, 0.80...and that is gonna be : 4.00......so the customer spends $ 4.00