Answer: 58 years old
Step-by-step explanation:
we have
<u>Find the greatest common factor GCF</u>
we know that
so
The GCF is equal to
therefore
<u>the answer is</u>
The number is
Diameter () is equal to twice the radius (). So, find the radius by dividing . The radius, or , is .
Substitute in the value.
Follow the order of operations and solve the exponent first.
Multiply.
Answer:
1)12²+9²=225
X=15km
2)12²+x²=13²
x²= 169-144
x²=25
x=5mi