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# The mean of this set of numbers is 10. What is the value of n?

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{1, 1, 1, 1, 1, 1, 1, 1, 1, n}

The mean of this set of numbers is 10. What is the value of n?

A) 1

B) 9

C) 11

D) 19

E) 91

Aug 28, 2019

#1
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[ 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + n]

___________________________________   =  10

10

Multiply both sides by 10  an simplify

9 + n   = 100     subtract 9 from both sides

n  = 91   Aug 28, 2019
#2
0

Which statement MUST be true given that a is positive and b, c, and d are all positive integers, and a < 1 < b < c < d.

A) 1/a > b

B) b - d > c - d

C) c + 1/a < d + 1/a

D) a > 1/d

E) c < a

macabresubwoofer  Aug 28, 2019
#3
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Line L has equation y = 4x - 7, and line M is parallel to line L and passes through the point (2, 15). Determine the equation of line M.

A) y = 4x + 7

B) y = 2x + 7

C) y = 4x + 15

D) y = 2x + 15

E) y = - 1/4x + 7

Rectangle EFGH has the coordinates

E (-3, -1)

F (-3, 3)

G (-1, 3)

Find the coordinates of point H.

A) (-1, 0)

B) (-1, 1)

C) (1, -1)

D) (-1, -1)

E) (0, -1)

macabresubwoofer  Aug 28, 2019