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timofeeve [1]
2 years ago
9

3h-2(4h-5)=10-5h please find the answer I’m having truble with it and SHOW YOUR WORK please

Mathematics
2 answers:
ira [324]2 years ago
7 0
3h - 8h + 10 = 10 - 5h

-5h + 10 = 10 - 5h

infinitely many solutions
Irina18 [472]2 years ago
6 0

3h - 2(4h - 5) = 10 - 5h

3h - 8h + 10 = 10 - 5h      <em>distributed -2 on left side</em>

     -5h + 10 = 10 - 5h<em>      added like terms on left side</em>

               10 = 10             <em>added 5h to both sides</em>

                TRUE

Since it is a true statement, they are the same line. So it is a consistent, dependent system with infinitely many solutions.

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Jenna bought 3 packs of bottled water, with 8 bottles in each pack. Then she gave 6 bottles away. Write an expression to match t
natima [27]
<h2>Jenna bought 3 packs of bottled water, with 8 bottles in each pack. Then she gave 6 bottles away. Write an expression to match the words.</h2><h2></h2><h2>(3x8)-6</h2>
3 0
3 years ago
What is the answer to 36÷9 using a number line?
Katarina [22]

To divide 36/9 using the number line you have to jump from zero with length of 9 until reach 36, and the result will be the number of jumps.

I do the jumps by steps, but you can draw in the number line:

0. First jump from 0 to 9.

,

1. Second jump from 9 to 9+9=18.

,

2. Third jump from 18 to 18+9=27.

,

3. Fourth jump from 27 to 27+9=36.

,

4. Great!! We already reach 36.

So, we need four jumps of 9 to reach 36 from 0.

So, the result is 36/9=4

4 0
1 year ago
A sample with a mean of m = 40 and a variance of s2 = 20 has an estimated standard error of 1 point. how many scores are in the
tamaranim1 [39]

The correct option is 20.

The score found for the sample is 20.

<h3>What is Standard error?</h3>

A standard error is a statistic that is applied to test the distribution of data. This metric is comparable to standard deviation. We can calculate the standard error if we know the sample size & standard deviation. It assesses the mean's precision.

Now, according to the question;

Sample mean; \bar{x}=40

Sample variance; s^{2}=20

Thus, s=\sqrt{20}=4.47

Standard error SE = 1

The amount of scores with in sample must be determined here.

The standard error formula is as follows:

S E=\frac{s}{\sqrt{n}}

We might rearrange the formula as follows:

\begin{aligned}\sqrt{n} &=\frac{s}{S E} \\n &=\left(\frac{s}{S E}\right)^{2}\end{aligned}

Substituting the values;

\begin{aligned}&n=\left(\frac{4.47}{1}\right)^{2} \\&n=19.98\end{aligned}

The sample's number of scores n = 19.98 = 20 (round up)

Therefore, the scores are in the sample is 20.

To know more about the Standard error, here

brainly.com/question/14467769

#SPJ4

3 0
1 year ago
Write the decimal number that has the specified place values.
Delicious77 [7]

Answer:

253.90

Step-by-step explanation:

7 0
2 years ago
ILL GIVE BRAINELST
murzikaleks [220]

Answer:

A = 12 ft

Step-by-step explanation:

Perimeter ( of SQUARE) B = 64

  then each side = 64/4 = 16

AREA of SQUARE C = 400

    side X side = 400

        then side = sqrt 400

Now use Pyhtagorean Theorem to find leg of right triangle that is

   side A  Side B  hypotenuse Side C

A^2 + 16^2 = (sqrt 400)^2

A^2 = 400 - 256

A^2 = 144       then A = 12  Ft

6 0
1 year ago
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