Answer:
Don’t quite me on it, but 45cm?
Explanation:
Well, if the shortest rope (4) is only 20cm, it’s about 5cm per length (?)
So, if you follow that pattern the longest (9) would be 45cm.
Answer:
a and c
Step-by-step explanation:
Answer:
84n-27
Step-by-step explanation:
-9(1-10n)-2(3n+9)
-9+90n-6n-18
-27+84n
3x - 7
The perimeter is the sum of all 3 sides of the triangle
To find the third side subtract the sum of the 2 known sides from the perimeter
x + 3 + 2x + 4 = 3x + 7
third side = 6x - (3x + 7 ) = 6x - 3x - 7 = 3x - 7
