10.95445115010332•10.95445115010332
For this case we have to:
n: Represents the weight of Mary in Kg.
If your sister weighs 15 kg less we have:

Where "y" represents the weight of his sister in kg.
To find how many times Mary is heavier than her sister, we must divide Mary's weight by her sister's weight.
We have then:

Answer:
Mary is
times heavier than her sister.
Answer:
75.40 inches
Step-by-step explanation:
If it is its circumference, then the answer is self-evident, 24 inches. If it is its diameter, then we must do a little calculation, multiplying the diameter by Pi to reach 75.40 inches.
Answer:
7 yards and 2 feet is 86 feet long.
Step-by-step explanation:
7·12=84
84+2=86
Answer:
Step-by-step explanation: