Answer:
The discount is $20 off or 50% off.
Step-by-step explanation:
It is easy math.
answer
1.
Short answer: 0.69Take 100. 31% = 31, 100-31=69Of course, when you increase the result by 31 percent you do not get the 100 back. But that was not the question.But, for completeness what do I multiply by to get the number, when adding 31 percent, gives me the original number, it is 0.7633 (1/1.31)
2.
Your measure start at 16. So that is the basis (unless stated otherwise) upon which you reference the change.
That is:
16
20−16
is you fraction.
This gives:
16
4
→
16÷4
4÷4
=
4
1
For this to be a percentage we need the denominator such that it becomes 100. Thus we have:
4
1
→(
4
1
×1)→(
4
1
×
25
25
)=
100
25
To express this in the standard script form we have 25%
お役に立てば幸いです
5/16 + 3/16 = 8/16 (Denominator is the same) 8/16 16 is divisible by 8 so answer is 1/2
The statement of the relationship is a formula.
Answer:
a. 17 b. 16/24
Step-by-step explanation:
a. Find the midpoints of each class interval which is:
7.5 x 2 = 15
12.5 x 9 = 112.5
17.5 x 5 = 87.5
22.5 x 5 = 112.5
27.5 x 3 = 82.5
Add all of these up to give 410
Add up the total of the frequency column which is 24
410 / 24 = 17.0833.....
Rounded to 2 significant figures, the answer is 17
b. Add together all the people under 20 which totals to 16 and put this over the total of 24 to give the fraction 16/24
