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daser333 [38]
2 years ago
9

three notebooks and 4 binders are $9.00. two notebooks and 4 binders cost $8.00. how much does a binder cost?

Mathematics
1 answer:
Goryan [66]2 years ago
4 0
$1.50 (please mark brainliest)
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4 people can paint a house in 6 hours. a) How long would it take 1 person to paint the house?​
OlgaM077 [116]

Answer:

9 hours

Step-by-step explanation:

If there's 4 people, they each need 1.5h So you multiply 1.5 by 6 and that's how you find how long it takes for 1 person.

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What is the correlation coefficient for the data shown in the table? 0 1 4 5
SOVA2 [1]

we know that

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4 0
3 years ago
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For what values of a are the following expressions true?/a+5/=-5-a
katovenus [111]

Explanation:

The expression is given below as

|a+5|=-5-a

Concept:

We will apply the bsolute rule below

\begin{gathered} if|u|=a,a>0 \\ then,u=a,u=-a \end{gathered}

By applying the concept, we will have

\begin{gathered} \lvert a+5\rvert=-5-a \\ a+5=-5-a,a+5=5+a \\ a+a=-5-5,a-a=5-5 \\ 2a=-10,0=0 \\ \frac{2a}{2}=\frac{-10}{2},0=0 \\ a=-5,0=0 \end{gathered}

Hence,

The final answer is

a\leq-5

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Step-by-step explanation:

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Answer:

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