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3 years ago

Find m A. 38 B. 76 C. 142 D. 71

Mathematics

2 answers:

baherus [9]3 years ago

8 0

I think the answer is a. because all sides are the same.

1 side = 38

side m = probably 38

Hope this helped☺☺

kolezko [41]3 years ago

6 0

$360 = 38 + 38 + x + x$
$2x + 76 = 360 \\ 2x = 284 \\ x = 142$
The answer is C. 142

Hope this helps.

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Half the sum of a number and 1.75 is −5.1. Enter your answer as a simplified mixed number

musickatia [10]

The unknown number expressed as a mixed fraction is 11 19/20

Let the unknown number be "x"

The sum of the number and 1.75 is expressed as x + 1.75

Half the sum of a number and 1.75 is 1/2(x+1.75)

Equating the result to -5.1 wil give:

1/2(x+1.75) = -5.1

Solve the resulting equation

x + 1.75 = 2(-5.1)

x + 1.75 = -10.2

x = -10.2 - 1.75

x = 11.95

x = 1195/100

x = 11 95/100

Hence the unknown number expressed as a mixed fraction is 11 19/20

Learn more here: brainly.com/question/14583740

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