Answer:
1.5 books per month
Step-by-step explanation:
18 book / 12 months = 1.5 books per month
Since Emily gave 15 of her buttons out of 75, it's just 15/75 or 1/5 which is 20%
I do not get it right now but i will answer it in a minute ok
The rule to remember about generating the perpendicular family to a line is we swap the coefficients on and x and y, remembering to negate one of them. Then the constant is set directly from the intersecting point.
So we have
y = 3x + 2
-3x + 1y = 2
Swapping and negating gets the perpendiculars; the constant is as yet undetermined.
1x + 3y = constant
Since we want to go through (0,2), we could have just written
x + 3y = 0 + 3(2) = 6
3y = -x + 6
y = (-1/3) x + 2
Third choice
