Step-by-step explanation:
Given that,
- Length of the one portion of the board = x feet
- Length of the another portion = (7x – 9) feet
According to the question,
Total length = Sum of the length of the two pieces
Total length = {x + (7x – 9)} feet
Total length = {x + 7x – 9} feet
<u>Total length = (8x – 9) feet</u>
Therefore, the total length of the board as a simplified expression in x is (8x – 9) feet.
Answer:
1. 1/4
2. 5/6
3. 87/40
4. 2/11
5. 49/54
6. 3/8
7. 9/2
8. 5
9. 31/9
10. 25/12
Down on the bottom, under the fraction line.
90 degrees........................................................................