Since opposite angles are equal, 8x+12=5x+57. Subtracting 5x as well as 12 from both sides, we get 3x=45. . Dividing both sides by 3, we get x=15. Plugging x=15 into 5x+57, we get 5*15+57=75+57=132
10 1/4 or 10.25 is the answer
Answer:
x=5
Step-by-step explanation:
add three to both sides. you get 7x=35. 35/7=5
Well Im just guessing but 1 1/2 foot
Answer:

Step-by-step explanation:
Given


-- folded twice
Required
The area of the new rectangle
When the length was folder, the new length is:

When the width was folder, the new width is:

So, the new area is:


