Find the value of x.

13

Step-by-step explanation:

(11x - 15) + (5x - 13) = 180 (Since a straight line = 180°)

11x + 5x - 15 - 13 = 180 (Combine like terms)

16x - 28 = 180 (Simplify)

16x - 28 + 28 = 180 + 28 (Add 28 to both sides)

16x = 208 (Simplify)

16x ÷ 16 = 208 ÷ 16 (Divide both sides by 16)

x = 13 (Simplify)

give more details

step-by-step explanation:

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