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Cecelia Guzman
Mathematics
24 February, 20:14
Ten times the sum of half a number amd 6 is 8?
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Jenny Bird
24 February, 20:21
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The number is - 10.4
First we need to define the terms so
n = a number
Next we want to rewrite the sentence in standard form
10 (.5n + 6) = 8
Distribute the 10
10 (.5n) + 60 = 8
5n + 60 = 8
Subtract 60 from both sides
5n = - 52
Divide both sides by 5
n = - 10.4
Now we can check but substituting - 10.4 for n in the original equation
10 (-10.4/2 + 6) = 8
10 (-5.2 + 6) = 8
10 (.8) = 8
8 = 8
This is true so we know that the number is - 10.4
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