The answer is 93
If we sorted out the number of each hours, the sequence will look like this
57 _ 69 _ 81 _ x _ 105
(in which x is the fourth hour of work)
We can see from the sequence that each hours, the mailman add additional 12 letters.
(69 - 57 = 12)
(81 - 69 = 12) . . . . proof
So, the amount of letters on the fourth hour would be:
81 letters + 12 letters = 93 Letters
Answer:
In step 5, andrew made a mistake by subtracting 9.8 instead of adding 9.8. Andrew should've have obtained the answer -2, but because of his mistake the answer is incorrect.
Hi!
We can use <u>point-slope form </u>to solve this.
<em> and </em>
<em> will be from one of the points.</em>
<u>First, we have to find </u>
<u>, the slope. We can use the slope equation to get this.</u>
<em>Plug in your points:</em>
Your slope is 
<u><em>Now plug points and slope into point-slope equation. We will use (8, 4).</em></u>
Now, if you want to get it into y = mx + b form, you have to solve for y:
Your equation is
<u><em>For more information on how to get the equation of a line when given two points, see here:</em></u>
brainly.com/question/986503
Answer:
36 black socks
Step-by-step explanation:
white socks: black socks
1 :3
We have 12 white socks so we multiply each term by 12
1*12 : 3*12
12:36
We have 36 black socks
