Order the decimals 0.42, -1/2, 11/20, -0.51

Mathematics

1 answer:

bearhunter [10]2 years ago

4 0

least to greatest: -0.51, -1/2, 0.42, 11/20

greatest to least: 11/20, 0.42, -1/2, -0.51

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4 QUESTIONS FOR 50 POINTS!!!!!! PLEASE HELP!!

melisa1 [442]

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The cost of 5 cans of dog food is 4.35. At this price ,how much do 11 cans of dog food cost

Setler [38]

Answer:

$9.57

Step-by-step explanation:

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nika2105 [10]

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2 years ago

You have 10 cups of a cleaning solution that is 10% white vinegar and 90% water. You want the mixture to be 50% white vinegar an

vichka [17]

Whatever% of anything is just (whatever/100) * anything.

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how much vinegar is there in "x" cups of 100% vinegar? well (100/100) * x, or just "x".

how much vinegar is there in 10 cups of 10% vinegar? well, (10/100) * 10, or just 1.

say after adding the "x" cups to the 10 cups, we end up with "y" cups, of 50% of vinegar.

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bearing in mind that x+10 = y, both cups amounts added up, and that x+1=0.5y, both vinegar amounts added up, thus

$\bf \begin{array}{lccclll}
&\stackrel{cups}{amount}&\stackrel{vinegar~\%}{amount}&\stackrel{vinegar~cups}{quantity}\\
\textit{100\% vinegar}&x&1.00&x\\
\textit{10\% cups}&10&0.10&1\\
------&------&------&------\\
mixture&y&0.5&0.5y
\end{array}
\\\\\\
\begin{cases}
x+10=\boxed{y}\\
x+1=0.5y\\
----------\\
x+1=0.5\left( \boxed{x+10} \right)
\end{cases}
\\\\\\
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4 0

2 years ago

I will mark you

Nana76 [90]

Answer:

Yes, because the x's do not have more than one y.

Step-by-step explanation:

x y

0 0

5 10

6 12

10 20

(That's meant to be a table). Looking at the x and y table values, you can see that none of the x's have two y's. So, this relation is a function.

7 0

2 years ago