3 hours and 35 minutes.
2 hours and 50 minutes.
Answer:
2
..................................
First is 20 plus 20 plus 5
Melissa and her younger sister are 5 meters apart.
<u>Step-by-step explanation</u>:
They form a right triangle,
- Height = her older brother 12 meters directly ahead of her .
- Base = her younger sister directly to her right.
- Hypotenuse = Melissa's brother and sister are 13 meters apart.
From the Pythagorean Triplets (5,12,13) :
The shortest side is the base of the right triangle.
Therefore, Base = 5 meters.
Melissa and her younger sister are 5 meters apart.
#2 will be 101
#3 6 1/6
#4 4 3/8