Answer:
We can represent a number in general by x . Halving a number means dividing it by two, so the expression that shows the half of a number is x2 , since you divide a number by two.
Step-by-step explanation:
Answer:
x = 9
Step-by-step explanation:
Step 1: Look at graph
You can see that both ∠B's are the same. Therefore, both side lengths AD and CD are the same
Step 2: Set equations equal to each other
3x = 2x + 9
Step 3: Solve
x = 9
And we have our answer!
Answer:
1, 2, 3, 3
Step-by-step explanation:
Answer:
86
Step-by-step explanation:
The average is the sum of all the grades divided by the number of tests.
83.8 = (84 + 79 + 82 + 88 + x) / 5
419 = 333 + x
x = 86