Answer:
6x - 12
Step-by-step explanation:
In this question, we area asked to write an expression for a mother’s age given some information about the children’s age. We proceed as follows:
Charlie is x years old and his sister is 4 years younger. His sister’s age would be x -4. The total of both ages would be their addition and that is x + x - 4 = 2x - 4
Now, the mother’s age is 3 times this quantity.
Mathematically, that is 3(2x -4) = 6x -12
The expression of the mother’s age is (6x-12) years
The probability is 1/512
This is my work
So you know a die has 3 odd and 3 even so to get a even it is 1/2 chance now you have 9 die so you have to multiply 1/2 by itself 9 times so it can be represented by 1/2^9 (1/2 to the power of 9), which 1*1=1 so just look at the 2. 2^9 is 2*2*2*2*2*2*2*2*2 which is 512. So 1/512 chance they are all even.
Not sure what the question is.
<u>9</u>+2x=18
Subtract 9 from each side then...
<u>2</u>x=9
Divide each side by 2 and you'll have that x is....
x=4.5
Not sure if I answered correctly.
Answer:
33y+16
Step-by-step explanation:
Break apart the problem:
-4(-4-7y)=16+28y
5y+16+28y=33y+16 (Add like terms)