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goldfiish [28.3K]
3 years ago
6

What is the sum of 4/10 and 40/100?

Mathematics
2 answers:
erik [133]3 years ago
7 0
First, make the denominators the same.

10 x 10 = 100
4 x 10 = 40
So 40/100 + 40/100 = 80/100. All you need to do is simplify.
Fittoniya [83]3 years ago
7 0
So the answer id 80/100 or if you need it to be reduced it would be 4/5, you are probably wondering how i  did that so here is how
4/10 +40/100    
you can't add those because they do not have  the same denominator so we would have to change that to 100, 4x10=40 and 10x10=100
which gives you 40/100
then you add 40/100 + 40/100 = 80/100
now if you have to reduce that you divide the answer by 20 both denominator and numerator. That is what gives you 4/5
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Let x be the height of the building where ladder hits the building

By Pythagoras theorem:

\text{Hypotenuse side}^2=\text{Perpendicular}^2+\text{Base}^2

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x = \sqrt{576} = 24 foot.

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