Answer:
The correct answer is 9.
Step-by-step explanation:
Let's start by analyzing the information we have.
We know that Takala put 9 marbles in the box, jackie put in 7, and laird put in 11.
Before continuing, the most convenient is to add these three things:
9 + 7 + 11 = 27.
We now know that those 27 were divided equally to each other, that is 27: 3.
So we just have to divide:
27: 3 = 9
In this way we can verify that each person obtained 9.
Answer:
x = ±6
Step-by-step explanation:
5x^2 = 180
Divide each side by 5
5x^2/ 5 = 180/5
x^2 = 36
Take the square root of each side
sqrt(x^2) = ± sqrt(36)
x = ±6
Answer:
12.
Step-by-step explanation:
to find the permiter of a rectangle you add the lengths of the rectangles four sides .
Answer:
27x-6
Step-by-step explanation:
To distribute 6(3x-1) properly, 6 needs to be multiplied with 3x and -1.
6*(-1)=-6,
3x*6=18x.
Without simplifying, the answer we get from this is 18x+9x-6. 18x+9x=27x, so the algebraic expression equivalent to 6(3x-1)+9x is 27x-6.
