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Serggg [28]
3 years ago
7

What is the mean for this set of data? 14 62 35 38 58 46 62 A. 45 B. 46 C. 48 D. 62

Mathematics
1 answer:
8090 [49]3 years ago
3 0

Answer:

A. 45

Step-by-step explanation:

The mean is the average of the data set.

(14+62+35+38+58+46+62)÷7=

(76+35+38+58+46+64)÷7=

(111+38+58+46+64)÷7=

(149+58+46+64)÷7=

(207+46+64)÷7=

(253+64)÷7=

317÷7=

45.285714285714285714285714285714‬≈45

Our answer that makes the most sense is A. 45

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Help please And how would you get the answer need asap
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2 years ago
The ratio of the geometric mean and arithmetic mean of two numbers is 3:5, find the ratio of the smaller number to the larger nu
IgorC [24]

Answer:

\frac{1}{9}

Step-by-step explanation:

Let the numbers be x,y, where x>y

The geometric mean is

\sqrt{xy}

The Arithmetic mean is

\frac{x + y}{2}

The ratio of the geometric mean and arithmetic mean of two numbers is 3:5.

\frac{ \sqrt{xy} }{ \frac{x + y}{2} }  =  \frac{3}{5}

We can write the equation;

\sqrt{xy}  = 3

or

xy = 9 -  -  - (2)

l

and

\frac{x + y}{2}  = 5

or

x + y = 10 -  -  - (2)

Make y the subject in equation 2

y = 10 - x -  -  - (3)

Put equation 3 in 1

x(10 - x) = 9

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{x}^{2}  - 10x + 9 = 0

(x - 9)(x - 1) = 0

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When x=1, y=10-1=9

When x=9, y=10-9=1

Therefore x=9, and y=1

The ratio of the smaller number to the larger number is

\frac{1}{9}

3 0
3 years ago
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