The present age of Jane is 45 years old and present age of her sister is 9 years old
<em><u>Solution:</u></em>
Let the present age of Jane be "x"
Let the present age of her sister be "y"
<em><u>Jane is 5 times older than her sister</u></em>
present age of Jane = 5(present age of her sister)
x = 5y ---------- eqn 1
<em><u>In 3 years, Jane’s sister will be 1/4 her age</u></em>
Age of sister after 3 years = 3 + y
Age of jane after 3 years = 3 + x
Age of sister after 3 years = 1/4(age of jane after 3 years)

Substitute eqn 1 in above equation

Substitute y = 9 in eqn 1
x = 5(9)
x = 45
Thus present age of Jane is 45 years old and present age of her sister is 9 years old
The correct awnser should be 8.4.
It's 24 since 24×1=24 and 24×5=120.
Answer:
<h2>12.5 millimeters (mm).</h2>
Step-by-step explanation:
<u>Explain/define:</u>
<u>CIRCUMFERENCE: THE DISTANCE AROUND A CIRCLE.</u>
<u>DIAMETER: THE LENGTH OF A STRAIGHT LINE THROUGH THE CENTER OF A CIRCLE.</u>
<u>Mathematics: Formula</u>



<u>Mathematics: Solve</u>
To find the length of the diameter from the circumference, divide the circumference by pi. The quotient is the diameter.
3.14 is often used for pi.

<u>Conclude:</u>
Therefore, the length of the diameter of the circle is 12.5 millimeters (mm).