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Aloiza [94]
3 years ago
13

Maria wants to solve the following system using the elimination method:

Mathematics
2 answers:
agasfer [191]3 years ago
7 0

Answer:

4

Step-by-step explanation:

What number should the equation x + y = 17 be multiplied by to eliminate y?

Radda [10]3 years ago
5 0
The answer that you’re looking for is a (4) I hope this helps you and I hope you have a great day !!!!
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Find the roots for y = (2x-3)(x+5) (The x values)
AlexFokin [52]

Answer:

x = \frac{3}{2} , -5

Step-by-step explanation:

We know that we have to find the roots of the equation - which is another way of saying the x-intercepts, or the points that are on the x-axis that the graph passes through. All points on the x-axis have a y-value of 0. So, in order to find the roots for this equation, we need to find which values of x make the y equal 0.

The equation has already been factored out. So, we just need to find which values of x for each of the expressions in the parentheses will make the result 0. To do this, set the expressions in the parentheses to 0 and isolate x.

1) First, let's look at (2x-3). Write the equation 2x-3 = 0. Then, isolate x:

2x-3 = 0\\2x = 3\\x = \frac{3}{2}

Therefore, \frac{3}{2} is one of the roots.

2) Next, let's look at (x+5). Write the equation x+5 = 0. Then, isolate x:

x+5 = 0\\x = -5

Therefore, -5 is a root as well.

The roots of the equation would be \frac{3}{2} and -5.

3 0
3 years ago
Very urgent!!!
LekaFEV [45]

Answer:

15

Step-by-step explanation:

Let volume of container = x

1/6x + 5 = 1/2x

x/6 + 5 = x/2

Multiply through by 6

x + 30 = 3x

Subtract 30 from both sides

x + 30 - 30 = 3x - 30

x = 3x - 30

x - 3x = - 30

-2x = - 30

x = 30 /2

x = 15

4 0
3 years ago
Plz answer corectly and you will get brainliest
Aleksandr-060686 [28]

Answer:173.5

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
HELP NEEDED ASAP
dedylja [7]

Answer:

The volume is 160

Step-by-step explanation:

Explanation: To find the volume of the rectangular prism you need to multiply 8x20. The reason is because there are 20 cubes in each row (i'm sorry if i'm not good at explaining math very well). The way I found the volume was to count the amount of cubes on the side and multiply it by how many rows there were on top. So that brings me to 160. The product of 8x20. (I hope this helps, math isn't my best subject)

7 0
3 years ago
Read 2 more answers
Solve the equation.<br> 7-4(2w + 1) = 9w-49+ w)<br> EEE.<br> W=<br> (Simplify your answer.)
tatiyna

7 - 4(2w + 1) = 9w - 49 + w \\ 7 - 8w - 4 = 10w - 49 \\ 10w + 8w = 7 - 4 + 49 \\ 18w = 52 \\ w =  \frac{52}{18}  \\ w= 2.88

I hope I helped you^_^

8 0
3 years ago
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