Answer:
-3
Step-by-step explanation:
first distribute 5 to x and 2 =5x+10 then combine like terms to 5x+4x=9x so on one side u have 9x+10 then on the other side of the equation u have 6x+1 now get the whole numbers on one side of the equation and variables on the other.
9x+10=6x+1
-6x -6x
3x+10=1
-10. -10
<u>3x</u>=<u>-9</u>
3. 3
-3=x
Set up a ratio with height over shadow height:
40/30 = x/15
Cross multiply:
40 x 15 = 30x
600 = 30x
Divide both sides by 30:
X = 20
The tree is 20 feet tall.
The name of the shape is an octagon. Since there are 9 identical tiles and you have 72 sides, you would divide 72 by 9 and get 8. And shape that has 8 sides would be an octagon.
Answer:
HELPP
Step-by-step explanation:
LOl
-k-(-8k)
= -k + 8k (two negatives equal one positive)
= 8k-k (flip it around because of the commutative property)
=7k (basic subtraction)
I really hope that helped :)
