Can u guys answer these 2 questions for me w/ work shown and also label the ones u guys did so i won’t get them mixed up

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.

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

if x = 1, then the answer is 3.5