Here are some examples that can equal twelve.
1 x 12 = 12
2 x 6 = 12
3 x 4 = 12
Hope I helped! ( Smiles )
Answer:
x = 3
Step-by-step explanation:
First, simplify by subtracting 2x from 6x:
6x - 2x + 8 = 20
4x + 8 = 20
Then, solve for x:
4x + 8 = 20
4x = 12
x = 3
So, the answer is x = 3
D. 40
follow the pattern
1 band director calls 3 members. = 4
Each member calls 3 more members 3(3) = 9
Then each of those 9 call 3 more members 9(3) = 27
Add them up
4+9+27 = 40
For this answer you will have to use the order of operations, aka PEMDAS.
P-Parenthesis
E-Exponents
M-Multiplication
D-Division
A-Addition
S-Subtraction
This is a very easy question because there aren't any exponents.
We can first look at the Parenthesis because that is what comes first in PEMDAS.
(17+5) All we have to do is 17+5= 22
Then we can do multiplication...
so we have 22 times .5 which equals 11.
Lastly, we will do subtraction because there is no addition....
50-11= 39
Our answer will be 39.
Each lion has 1 head. The number of lion heads is L .
Each bird has 1 head. The number of bird heads is B.
The total number of heads of all species is (L + B) = 30
Each lion has 4 feet. The number of lion feet is 4L .
Each bird has 2 feet. The number of bird feet is 2B .
The total number of feet of all species is (4L + 2B) = 100
The system of linear equations is:
L + B = 30
4L + 2B = 100 .