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Ksenya-84 [330]
3 years ago
15

HELP PLEASE QUICKLY!!!!!!!!!

Mathematics
1 answer:
Gennadij [26K]3 years ago
8 0
Side angle side or SAS
if you have any problems with my answer, write a comment and I will try to fix it.
Thanks!
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Introduction to addition or subtraction of fractions with different denominator 3/4-1/8
snow_lady [41]
The denominator must be the same, so just think of the LEAST COMMON MULTIPLE, The LCM here is 8, because you can multiply 4 by 2 to get 8.
so when you multiply, you multiply both on the top and on the bottom, so this would be:
3 x 2 / 4 x 2 = 6 / 8
Now you can add or subtract: 6/8 - 1/8 = 5/8
7 0
3 years ago
Help me please i need answers for my sisters homework
frozen [14]
Eleven Million Seven Hundred and Sixty Thousand Eight Hundred and Twenty-five.
4 0
3 years ago
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Solve the system of linear equations by substitution.<br> 3x + y = -9<br> y=5x+7
11Alexandr11 [23.1K]

Answer:

The solution is x = -2, y = -3

Step-by-step explanation:

Let's start with the equation 3x + y = -9

Substitute the y for 5x+7 seen in the second equation

Now you have 3x + (5x+7) = -9

Lets solve:

Let's add the x's

Now we have 8x + 7 = -9

Substracy seven from each side

Now we have 8x = -16

Now let's divide 8 on each side

Now we have x = -2

Now lets plug in -2 to the second equation

The second equation is y = 5x+7

When we plug in -2 we get y=5(-2)+7

We multiply

We now have y = -10+7

Add

y = -3

The solution is x = -2, y = -3

8 0
2 years ago
What is 30+10x=100 how to solve
Georgia [21]
X=7 
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x=7
hope this helps 
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3 years ago
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Find the slope of the two points (6,5) and (9, 15)
vlabodo [156]

\bf (\stackrel{x_1}{6}~,~\stackrel{y_1}{5})\qquad (\stackrel{x_2}{9}~,~\stackrel{y_2}{15}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{15}-\stackrel{y1}{5}}}{\underset{run} {\underset{x_2}{9}-\underset{x_1}{6}}}\implies \cfrac{10}{3}

7 0
3 years ago
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