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Temka [501]
2 years ago
15

Can anyone figure this out pls

Mathematics
1 answer:
olchik [2.2K]2 years ago
7 0

Answer:

there! so the one with the +3 would be placed higher up than the one with a negative 3 because they are referring to where the line crosses the y axis. other than that, they would be parallel lines.

Step-by-step explanation:

mr clean

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Word Problem On Division
VMariaS [17]
Answer is 13-1/2 cups
Step by step
We know 1 cup is = 2/9 of a liter
We know we are working with 3 liters = how many cups
So first I want my 3 liters in a like denominator based fraction
1 liter is = 9/9 so 3 liters is = 27/9
I want to divide 27/9 by 2/9, the part of a liter that equals 1 cup
When I divide a fraction, I flip one fraction and multiply
27/9 x 9/2 = 243/18, simplify to 13-1/2 cups
Problem solved

You can check your work
Multiply 13-1/2 cups x 2/9
Change your whole number to a mixed fraction
27/2 x 2/9 = 54/18, simplify it equals 3 liters!

6 0
2 years ago
Y = 3x + 15<br> 3x + 3y = 9
Zina [86]

Answer:

\Large\boxed{x=-3}\Large\boxed{y=6}

Step-by-step explanation:

<u>Given the system of equations</u>

1)~y=3x+15

2)~3x+3y=9

<u>Divide 3 on both sides of the 2) equation</u>

3x+3y=9

3x\div3+3y\div3=9\div3

x+y=3

<u>Current system</u>

1)~y=3x+15

2)~x+y=3

<u>Substitute 1) equation into the 2) equation</u>

x+(3x+15)=3

<u>Combine like terms</u>

x+3x+15=3

4x+15=3

<u>Subtract 15 on both sides</u>

4x+15-15=3-15

4x=-12

<u>Divide 4 on both sides</u>

4x\div4=-12\div4

\Large\boxed{x=-3}

<u>Substitute the x value into one of the equations to find the y value</u>

y=3x+15

y=3(-3)+15

y=-9+15

\Large\boxed{y=6}

Hope this helps!! :)

Please let me know if you have any questions

4 0
1 year ago
Find the power of <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B8%7D%20" id="TexFormula1" title=" \frac{3}{8} " alt=" \f
Svetradugi [14.3K]
\sf Hello!

\sf Since,

(\dfrac{\sf a}{\sf b})^{\sf n} = \dfrac{\sf a^{n}}{\sf b^{n}}

\sf Then,

(\dfrac{\sf 3}{\sf 8})^{\sf 3} = \dfrac{\sf 3^{3}}{\sf 8^{3}} = \dfrac{\sf 27}{\sf 512}

~ \sf iCarl
7 0
3 years ago
Read 2 more answers
Uhh help lol<br> 5.3x + y = 28.5 <br> 4.2x + 3.1y = 27.2<br> find x and y
navik [9.2K]

Answer:

x = 5, y = 2

Step-by-step explanation:

First, isolate y in the top equation.

y = -5.3x+28.5

Next, substitute y in the bottom equation.

4.2x + 3.1(-5.3x + 28.5) = 27.2

5.3x + y = 28.5

Simplify.

4.2x + -16.43x + 88.35 = 27.2

Combine like terms.

-12.23x + 88.35 = 27.2

Isolate x on one side.

-12.23x = -61.15

Isolate x.

x = 5

Substitute x into 5.3x + y = 28.5

5.3(5) + y = 28.5

Simplify.

26.5 + y = 28.5

Isolate y.

y = 2

x = 5 \\y = 2

6 0
3 years ago
What is the Median for the following set of numbers? ​21 23 76 47 55 135 45 30 17
Leno4ka [110]

Answer:

Median = 45

Step-by-step explanation:

We are given the following data set:

21, 23, 76, 47, 55, 135, 45, 30, 17

Median is the number that divides the data into two equal parts.

Formula:

Median:\\\text{If n is odd, then}\\\\Median = \displaystyle\frac{n+1}{2}th ~term \\\\\text{If n is even, then}\\\\Median = \displaystyle\frac{\frac{n}{2}th~term + (\frac{n}{2}+1)th~term}{2}

Sorted data:

17, 21, 23, 30, 45, 47, 55, 76, 135

Sample size = 9, which is odd

Median =

\dfrac{9+1}{2}^{th}\text{ term} = \dfrac{10}{2}^{th}\text{ term} = 5^{th}\text{ term}\\\\= 45

The median of given set of numbers is 45.

7 0
3 years ago
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