2+number won over 9+number played=1/2
number won=number played (number played means how many more past 9)
so
if n=number won=number played then
times both sides by (2)(9+n)
2(2+n)=9+n
distribute
4+2n=9+n
minus n from both sides
4+n=9
minus 4 from both sides
n=5
answer is 5
test
2+5=7
9+5=14
7/14=1/2
true
n=5
You are paying 15% of the original price because
50% + 35% = 85%
100% - 85% = 15%
I hope this helped :) :)
Answer:
I think it might be B a mean is bigger than the median
Using sampling concepts, it is found that she could use systematic sampling, asking one out of every 10 students for example, as long as it involves students of all possible groups.
<h3>How are samples classified?</h3>
Samples may be classified as:
- Convenient: Drawn from a conveniently available pool.
- Random: All the options into a hat and drawn some of them.
- Systematic: Every kth element is taken.
- Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
- Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.
In this problem, the most viable type is a systematic sample, asking one out of every 10 students for example, as long as it involves students of all possible groups.
More can be learned about sampling concepts at brainly.com/question/25122507
Answer:
Ratio
20:25
40:50
80:100
Fraction
8/10
12/15
16/20
20/25
24/30
28/35
32/40
36/45
40/50
44/55
48/60
64/80
80/100
Percentage
80%
Decimal
0.8
I hope this helps and that you have a great day! :)
<em>Ravenna</em>