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miv72 [106K]
2 years ago
15

An orchestra has 100 musicians 4/10 of them play string instruments-violin , viola, cellodouble bass , guitar, lute, and harp. W

hat decimal is equivalent to 4/10 ?
Mathematics
1 answer:
vazorg [7]2 years ago
5 0
4/10 = 4 tenths = 0.4

Hope this helps!
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Comment
|First of all, the triangles are equal by ASA the way the diagram has been marked.

B and E are both right angles.
Side BC = Side DE
<BCA =< EDA 

So triangle BCA = triangle EDA

Now to the letters.
x = y - 1                 Add 1 to both sides.
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Step One
Since (1) and (2) both have y isolated on their respective right sides, they can be equated.

1.5x - 1.5 = x + 1       Take an x from both sides.
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0.5x =  1 + 1.5
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Now we need a y value.
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5 + 1 = y - 1 + 1
6 = y 

So the 2 sides and the 2 angles are equal when 
x = 5
y = 6

C Answer <<<<<<



 


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