There isnt enough information on this question, wheres the figure and the answers
Answer:
403π/9 or 140.67
Step-by-step explanation:
First, you have to find the circumference of the circle
Circle circumference equation:
Circumference = dπ (Circumference = diameter x pi)
You have a radius of 31 which is equal to 62 diameter (diameter is double the radius)
So:
C = 62π
Now, you need to know that a full circle is 360 degrees and we want only 200 degrees of that,
So in other words, you want 200/360 of the circle's circumference.
You can find the measure of the 200 degree arc by doing
62π x
=
or 140.67
They are implying that the rate is constant at:
14pc/7d= 2 postcards per day
So after 10 days at that rate Pam will have bought 10*2=20 postcards.
<h3><u>Fraction to Decimal:</u></h3>
Divide the numerator (upper number) by the denominator (bottom number) on your calculator. Whatever number you get would be your decimal.
<h3><u>Decimal to Percent:</u></h3>
Take your decimal and use your calculator to multiply it by 100. Whatever number you get would be your percent. However, since it is a percent, you need to include the percentage unit.
<h3><u>Demonstration:</u></h3>
1/4 = 0.25
0.25 * 100(%) = 25%