Answer:
Yes they are proportional.
Step-by-step explanation:
You would have scored 5 points for every minute because 15/3=5.
Your cousin scored 5 points for every minute because 25/5=5.
Divide the number of points by the total time.
Given,
Diameter of circle=15cm
so, radius= D/2= 15/2
we know that circumference=perimeter
2πr= 2×22/7×15/2=47.1428cm
Answer:
selling price is $26.4
Step-by-step explanation:
Here, we want to apply the markup percentage so as to get the price of the jewelry
mathematically, we have the selling price as;
$22 + (30% of $22)
= $22 + 4.4
= $26.4
Rule of 72 is (72/interest%), so we do
(72/2.1%)=34.3
the answer is B