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NISA [10]
2 years ago
10

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

Mathematics
1 answer:
musickatia [10]2 years ago
5 0

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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mixas84 [53]

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Step-by-step explanation:

1. As you can see in the figure, triangle ABC and the triangle DFG are similar.

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