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Neporo4naja [7]
3 years ago
5

What fraction is closest to .39. 1/3 or 2/5?

Mathematics
1 answer:
Maksim231197 [3]3 years ago
6 0
2/5 would be closer

since 2/5 is 0.4 
and 1/3 is 0.333...

You can draw a number line to see how 2/5 ( 0.4) is closest to 0.39 
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A chemical company makes two brands of antifreeze. The first brand is 65% pure antifreeze, and the second brand is 90% pure anti
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\bf \begin{array}{lcccl} &\stackrel{solution}{gallons}&\stackrel{\textit{\% of }}{antifreeze}&\stackrel{\textit{gallons of }}{antifreeze}\\ \cline{2-4}&\\ \textit{1st brand}&x&0.65&0.65x\\ \textit{2nd brand}&y&0.90&0.9y\\ \cline{2-4}&\\ mixture&40&0.8&32 \end{array}~\hfill \to \begin{cases} x+y&=40\\ \boxed{x}=40-y\\ \cline{1-2} 0.65x+0.9y&=32 \end{cases} \\\\[-0.35em] ~\dotfill

\bf \stackrel{\textit{substituting in the 2nd equation}}{0.65\left( \boxed{40-y} \right)+0.9y=32}\implies 26-0.65y+0.9y=32 \\\\\\ 26+0.25y=32\implies 0.25y=6\implies y=\cfrac{6}{0.25}\implies \blacktriangleright y=24 \blacktriangleleft \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{since we know that}}{x=40-y\implies }x=40-24\implies \blacktriangleright x=16 \blacktriangleleft

7 0
3 years ago
Read 2 more answers
What is 5/3 in simplest form?
Lerok [7]
5/3 is already in its simplest form. It can't be equally divided. It can only be turned into a proper fraction. (1 2/3)
5 0
3 years ago
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Diano4ka-milaya [45]

Answer:

its either B,C, OR D, because if you add the numbers inside the parenthesis and times it by the number in front of the : ( ), then you get 180 and that's what the number is that you should get. From Jacob in middle school in Florida.

Step-by-step explanation:

Where (because) is, to the end of the whole sentence is the explanation. thank you for understanding if you do

just got it wrong and the answers turn out to be B,and D.

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3 years ago
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2 years ago
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