Answer:
A
Step-by-step explanation:
Let Casey's age be x
Brian's age will be -3 from 2 times x ( Casey's age ) so it will be 2x-3
Adam's age will be Casey's age (x) + 9 which is x+9
NOW the sum of all these ages is 46 so..
Casey's age + Brian's age + Adam's age = 46
x + 2x-3 + x+9 = 46
2x + x + x + 9 -3 = 46
4x + (9 - 3) = 46
4x - 6 = 46
now transfer the numbers on the left one by one to the other side( right )
4x = 46 - 6 ( always remember the sign of the number becomes the opposite when we transfer them to other side)
4x = 40
x = 40 / 4
x = 10
so x = Casey's age = 10
2x - 3 = Brian's age = 2 * 10 - 3
= 20 - 3 = 17
x + 9 = Adam's age = 10 + 9 = 19
Answer:
The sequence continually decreases.
Step-by-step explanation:
It has gone from:
12 to 9 to 6 to 3
|_____| |____| |_____|
-3 -3 -3
The pattern here is that the sequence is continually decreasing by 3.
So the continued pattern would be:
12, 9, 6, 3, 0
If you wanted to go to the negatives:
0, -3, -6, -9, -12, and so on.
I hope this helps!
<h2><u>
PLEASE MARK BRAINLIEST!</u></h2>
<u></u>
Answer:
x= -1/23
Step-by-step explanation:
Answer:
2340
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180 (n - 2) ← n is number of sides
Here n = 15 , then
sum = 180 × 13 = 2340
