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sp2606 [1]
3 years ago
7

Solve the system using the elimination method.

Mathematics
2 answers:
Taya2010 [7]3 years ago
7 0
By adding the 1st and third equation together, you get rid of z and end with 7x+8y=13. The second equation will be the second equation and 2 times the first equation, so the will yield 3x+8y=1. Now, you solve this system of equations and get x3, y=-1, and z=-4
eimsori [14]3 years ago
4 0

Answer:

That's wrong...

Solve using determinants:

x + 4y − z = −14  

5x + 6y + 3z = 4  

−2x + 7y + 2z = −17

|A| =  -120  

|Ax| =  -240

|Ay| = 360  

|Az| = -480  

x =  2

y = -3  

z =  4

Step-by-step explanation:

Solving a 3 x 3 Linear System Using Cramer's Rule

You might be interested in
Claudia is reading a book that has 360 pages.She read some of the book last week.She plans to read 46 pages today.When she does,
Ne4ueva [31]

Answer:

242 pages.

Step-by-step explanation:

Let x represent number of pages that Claudia read last week.

We have been given that Claudia is reading a book that has 360 pages. She read some of the book last week. She plans to read 46 pages today. When she does,she will be 4/5 of the way through the book.

The number of total page left after reading 46 pages and x pages last week will be equal to 4/5 of 360.

We can represent this information in an equation as:

x+46=\frac{4}{5}\cdot 360

Let us solve for x.

x+46=4\cdot 72

x+46=288

x+46-46=288-46

x=242

Therefore, Claudia read 242 pages last week.

3 0
3 years ago
Write an equation in slope intercept form for a line with a slope of - 3/2 that passes through the point 4,10 help please
Archy [21]

Answer:

y =  \frac{ - 3}{2} x + 16

Step-by-step explanation:

They give us the slope so this makes it a lot easier.

Slope intercept formula is

y=mx+b

(m) is slope

(b) is y intercept

we can apply our slope into the formula

y=-3/2x+b

Now we can replace (y) with the (y) from the ordered pair they gave us (4, 10), and replace the (x) with the (x) from the ordered pair they gave us

(4, 10)

10=-3/2(4)+b

Now solve

10=-6+b

Add 6 to each side

16=b

Now we we put both our slope and intercept into the formula.

y =  \frac{ - 3}{2} x + 16

8 0
3 years ago
Help, please! Thankyou!!!!
alukav5142 [94]

Answer: C

Step-by-step explanation: simply apply the distributive property to each half of the expression to be left with terms that can be combined.

(8x + 16y)/2 = 4x + 8y

4(x - y) = 4x - 4y

(4x + 8y) + (4x - 4y) = 4x + 4x + 8y - 4y

= 8x + 4y => C

6 0
4 years ago
Read 2 more answers
Please help!!
Free_Kalibri [48]

Answer:

I believe it would be C, 8 squared.

Step-by-step explanation:

8 squared means to multiply 8 twice. Not by two, 8 times 8. If you do that, you will get 64. This means that 8 squared is equivalent to 64'1

3 0
3 years ago
Read 2 more answers
pleaseee help asaaap its one little easy question plzzzz I would appreciate it and I give brainliest ^^!!
NeTakaya

Answer:

B) Corresponding Lines

Step-by-step explanation:

When two lines are crossed by another line (which is called the Transversal), the angles in matching corners are called corresponding angles.

(Hope this helps)

Yours Truely, TheAnimeCatUwU

7 0
3 years ago
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