5.5x+9
Trying to make my answer 20 characters
We know that AB and CD are parallel. This allows many assumptions.
From that we know that angle A and angle D are congruent.
That means that x + 8 = 2x - 22 and we can solve for x
x + 8 = 2x - 22
x + 30 = 2x
30 = x or x = 30
We know from the figure that angle B is x or now that we solved for x is 30 degrees. Also, we know that both angle A and angle D are 38 degrees. Now we can solve for the vertical angle E which has a measure of y degrees. A triangle has the sum of its angles equal to 180 degrees.
We can set up an equation like this 30 + 38 + y = 180
30 + 38 + y = 180
68 + y = 180
y = 112 degrees
That is how you would solve this problem
Answer:
69
Step-by-step explanation:
23 on each shelf x 3 shelves = 69 books
286 is the sum of the series below. You can plug this in or use long addition.
Either that or you make an average and that's your answer.
I could be wrong but I’m pretty sure the analysis stage
