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Katen [24]
3 years ago
10

Solve the system linear equations, using Gaussian Elimination

Mathematics
1 answer:
otez555 [7]3 years ago
5 0
Just look it up on the web that will help a lot
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Solve the equation. 27x - 6 = 9x - 1
Evgesh-ka [11]
27x-6=9x-1
27x-9x =-1+6
18x = 5
x = 5/18
5 0
4 years ago
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A jacket that is regularly sold for $49.95 is on sale for 25% off. What is the sale price of the jacket?
Gnoma [55]

First, find 25% of 49.95. Turn 25% into a decimal by dividing by 100.

25% ⇒ 0.25

Now, multiply 0.25 by 49.95.

0.25 × 49.95 = 12.46

25% of 49.95 is 12.46, so subtract 12.46 from 49.95.

49.95 - 12.46 = 37.49

<h2>Answer:</h2>

<u>The discounted price of the jacket is </u><u>$37.49</u><u>.</u>

Now find 8% of 37.49.

8% ⇒ 0.08

Multiply 0.08 by 37.49.

0.08 × 37.49 = 2.99

<h2>Answer:</h2>

<u>The tax is </u><u>$2.99</u><u>.</u>

To find the full price, add 37.49 and 2.99 together.

37.49 + 2.99 = 40.48

<h2>Answer:</h2>

<u>The final cost is </u><u>$40.48</u><u>.</u>

4 0
3 years ago
A yard cleanup service charges a $345 fee plus $16.25 per hour. Another cleanup service charges a $213 fee plus $24.50 per hour.
Thepotemich [5.8K]

The time for the job for which the two company are the same is 16

<h3>How to form the equation and find the cost?</h3>

A yard cleanup service charges a $345 fee plus $16.25 per hour. Therefore,

using linear equation,

y = mx + c

where

  • y = total cost
  • x = time

Therefore,

y = 345 + 16.25x

Another cleanup service charges a $213 fee plus $24.50 per hour. Therefore,

y = 213 + 24.50x

Hence, the time when both cost are the same is as follows;

213 + 24.50x =  345 + 16.25x

213 - 345 = 16.25x - 24.50x

-132 = -8.25x

x = 132 / 8.25

x = 16

learn more on equation here: brainly.com/question/2072580

4 0
2 years ago
PLZ HELP ASAP INSCRIBED SHAPES
OverLord2011 [107]
The radius is the hypotenuse of the eight triangle. So we can use pythagorean triples to find the side.

It’s handy to remember that 5, 12, 13 is a pythagorean triple.

So, 13 is the radius.

Hope this helped!
8 0
3 years ago
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Solve the equation for 3y-4=6-2y
Blababa [14]

the answer for 3y-4=6-2y is y=2

7 0
3 years ago
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