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Sedbober [7]
2 years ago
8

Mia needs $15 to purchase a new set of headphones. She is saving part of her allowance each week. The graph represents the situa

tion described. (Forgot the graph last time)

Mathematics
1 answer:
Aleks [24]2 years ago
8 0
Every 2 weeks the amount of money needed goes down 3
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How do you solve this<br> -48=2q
krek1111 [17]

Answer:

the answer is -24

Step-by-step explanation:

-48 = 2q

divide both sides by 2

7 0
2 years ago
Assume that all​ grade-point averages are to be standardized on a scale between 0 and 6. How many​ grade-point averages must be
yanalaym [24]

Answer:

The sample size 'n' = 72,030

Step-by-step explanation:

<u>Step(i):-</u>

<em>Given that the Estimate Error = 0.013</em>

<em>Given that the standard deviation of the Population = 1.5</em>

<em>The estimated error is determined by </em>

<em />E = \frac{Z_{0.98} S.D }{\sqrt{n} }<em />

<u><em>Step(ii):-</em></u>

<em>Given that the Level of significance = 0.98 or 0.02</em>

<em>Z₀.₀₂ =   2.326</em>

<em>The estimated error is determined by </em>

<em>         </em>E = \frac{Z_{0.98} S.D }{\sqrt{n} }<em />

<em>    </em>0.013 = \frac{2.326 X 1.5 }{\sqrt{n} }<em />

<em>       </em>\sqrt{n} = \frac{3.489}{0.013} = 268.38<em />

<u><em>Squaring on both sides, we get</em></u>

<em>     n =  72,030</em>

<u><em>Final answer:-</em></u>

The sample size 'n' = 72,030

7 0
3 years ago
Helppppp pleaseeee!!!
Tatiana [17]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
-9x-6y=15,9x-10y=145
vazorg [7]

-9x-6y=15

9x-10y=145

Find y first by eliminating the x.

Add the two equations together.

-9x+9x-6y+-10y=15+145

-6y+-10y=15+145

-6y-10y=160

-16y=160

divide both sides by -16 to get +y

-16y/-16=160/-16

y=-10

Use the substitution method to find x

-9x-6y=15

-9x-6(-10)=15

Do the bracket first

-9x+60=15

Move +60 to the other side. Sign changes from +60 to -60.

-9x+60-60=15-60

-9x=-45

Divide both sides by -9

-9x/-9=-45/-9

x=5

Answer:

( 5,-10)

3 0
3 years ago
List the next four multiples of fraction 7/12
Sidana [21]
<h2>Hello!</h2>

The answer is:

\frac{14}{12}=\frac{7}{12}*2\\\\\\\frac{21}{12}=\frac{7}{12}*3\\\\\\\\\frac{28}{12}=\frac{7}{12}*4\\\\\\\\\frac{35}{12}=\frac{7}{12}*5

<h2>Why?</h2>

A multiple of a number is the repeated sum of itself, for example:

Multiple of the number 1 are: 1, 2, 3, 4, 5 and so...

Multiple of the number 3 are: 3, 6, 9, 12, 15 and so...

From the example we have:

Multiple of the number 3 are: Itself, (3+3), (3+3+3), (3+3+3+3), (3+3+3+3+3) and so...

So,

Multiple of \frac{7}{12} are:

\frac{14}{12}=\frac{7}{12}*2=\frac{7}{12}+\frac{7}{12}\\\\\\\frac{21}{12}=\frac{7}{12}*3=\frac{7}{12}+\frac{7}{12}+\frac{7}{12}\\\\\\\\\frac{28}{12}=\frac{7}{12}*4=\frac{7}{12}+\frac{7}{12}+\frac{7}{12}+\frac{7}{12}\\\\\\\\\frac{35}{12}=\frac{7}{12}*5=\frac{7}{12}+\frac{7}{12}+\frac{7}{12}+\frac{7}{12}+\frac{7}{12}

Have a nice day!

6 0
3 years ago
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