not possible because the area of a square is always a square of it's length and a square cannot be a prime number
8/15 - (-2/3)
Its like adding them when its -(-#), so we turn it into 8/15 + 2/3
Now we make each fraction have the same denominator; 8/15 + 10/15
Now we solve by adding; 18/15 = 1 1/5
Answer:
Step-by-step explanation:
2. I think C
3.D
4.D
5.B
6. D
7.B
8.A
9.A I think
Number of runners needed = 1 1/2 / 1/4
= 3/2 / 1/4
= 3/2 * 4
= 12/2 = 6 runners (answer).