1. X+2=3x-4
6=2x
x= 3
2. y= 8-x
8-x = 3x+4
4= 4x
X= 1
3. -2x +3(2x+7)=9
-2x + 6x + 21 = 9
4x = -12
x= -3
Answer:
8
Step-by-step explanation:
-12u and 12u cancel each other out. Leaving 8 by itself.
He arrives at 9:30 because if you take 8:40 (when dealing with time I like to think of it as a whole number so 8:40 would become 840) then just add 50 minutes to 8:40 (or 840+50 which equals 890 also know as 9:30 because you have to subtract 60 from 90 (because 60 is the limit in time (well technically 59 is)) then add one to 8 like so, which equals 9:30 Enjoy!=)
Answer:
53 in^2
Step-by-step explanation:
Divide the arrow into two shapes, a triangle and a rectangle. Now find the area for both of them.
Rectangle: l*w
4*8=32 in^2
Triangle: 1/2bh
1/2(6)(11-4)
3*7
21 in^2
Combine them: 21+32=53
Simple, just divide the number by the percentage and you get the original number. You can check it by multiplying the original number of 272 by 55% or .55 to get 150.
150/.55 = 272