Answer:
10
Step-by-step explanation:
(x-4)^2-28=8 Add 28
(x-4)^2=36 Root 36
x-4=6
Add 4
x=10.
Hope this helps :D
Y=x-3
Step-by-step explanation:
it is because as the formula is y=mx+b
the slope is 1 and y-intercept is -3 so the equation is y=x-3
Answer:
-14x+21
Step-by-step explanation:
-7(2x-3)
-14x+21
The scale factor from A to B is 1.8
14 : 25.2 = 1.8
20 : 36 = 1.8
checking if it is correct:
14 x 1.8 = 25.2
20 x 1.8 = 36
Answer:
%35 of them were in color
Step-by-step explanation:
Since 30 percent of the first 200 sold were in color, 200x30/100 = 60 of them were in color.
Since 20 percent of the next 300 sold were in color, 300x20/100 = 60 of them were in color.
Since 90 percent of the last 100 sold were in color, 100x90/100 = 90 of them were in color.
In total, 60 + 60 + 90 = 210 out of 600 were in color.
The percentage is:
=
→ x =
= 35