dontcareanyonemo
24.07.2019 •
Mathematics
One third of a number, z, added to one fifth of the same number is 3/5 . what is the number and why? a) 40/3 , because the equation that represents this sentence is 3z+5z=3/5 . b) 6/5 , because the equation that represents this sentence is 1/3z+1/5=3/5 . c) 3/40 , because the equation that represents this sentence is 3z+5z=3/5 . d) 9/8 , because the equation that represents this sentence is 1/3z+1/5z=3/5 . answer ! : )
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Ответ:
z> the number
we know that
One third of a number, z, added to one fifth of the same number is 3/5
so
the equation that represents this sentence is
(1/3)z+(1/5)z=3/5
(5+3)z/15=3/5> 8z=9> z=9/8
therefore
the answer is the option
D) 9/8 , because the equation that represents this sentence is 1/3z+1/5z=3/5 .
Ответ:
Graph B would be the answer.
3x-2y=12
-2y=-3x+12
y=3/2x-6