Answer:
The answer for number 9 is 11 and number 11 the answer is 6.
Step-by-step explanation:
9) x + 8 -y, use x = 20 and y=17
First, plug in your numbers for each variable.
20 + 8 - 17
Then, use PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction) to solve your equation which in this case goes straight across like this.
20 + 8 = 28 - 17 = 11.
11) 10 - x + y divided by 2; use x=5 and y=2
Once again, plug in your numbers.
10 - 5 + 2 divided by 2
In this problem, you do the division first which brings you to:
10 - 5 + 1
Then, you subtract and then add to get your answer of 6.
10 - 5 = 5 + 1 = 6.
