A series contains 18 numbers and has a sum of 4,185. The last number of the series is 275. What is the first number?
1 answer:
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Answer:
The correct answer to the question is
C) The mean and range of the fingerling catfish are both greater than those of the large catfish.
Step-by-step explanation:
From the attached chart and table, it is seen that the mean = (∑ f×m)/n
Where Mean x = Mean estimate of frequency distribution
f = Class frequency
m = midpoint of each class
∑ f×m = the sum of the product of each midpoint value and its respective frequency
n = The sum of the frequencies
Therefore from the tables we have
For the Fingerling catfish
(∑ f×m)/n = 11037.5/1.375 = 8027.3
and the range = (Maximum value) - (minimum value) in the data set
= 10500 - 3500 = 7000
For the Large catfish we have
(∑ f×m)/n = 2931.25/2.1 = 1395.83
and the range = (Maximum value) - (minimum value) in the data set
= 2125 - 375 = 1750
As seen above, the mean and range of the fingerling catfish are both greater than those of the large catfish
Amount that is left on Marcia credit card = $ 1700
Marcia thought that ,she will pay off her balance,by making a payment of the same amount each month.
As, there are four payment methods are given , we have to find the way in which balance can be paid fastly.
A.→ 55 × Number of months = 1700
Number of months = months (approx)
B. → 45 × Number of months = 1700
Number of months = months (approx)
C.→ 75 × Number of months = 1700
Number of months = months (approx)
D.→ 90 × Number of months = 1700
Number of months = months (approx)
The monthly amount of $ 90,will allow Marcia to pay off her balance fastest.
Answer:
The correct option is E. 8
The value of h is 8 unit.
Step-by-step explanation:
Given:
Δ BAD ~ Δ CBD
AC = 20
DC = 4
∴
To Find:
h = ?
Solution:
Δ BAD ~ Δ CBD ................Given
If two triangles are similar then their sides are in proportion.
On substituting the given values we get
The value of h is 8 unit.