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hammer [34]
3 years ago
14

Solve:4x+3y=20;4x+2y=10 by matrix method​

Mathematics
1 answer:
laila [671]3 years ago
8 0

Answer:

i don't know sorry . and study well to make your future good

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(219,379.01 - x) / x = .3321
Ivahew [28]

Answer:x = 164686.592598

Step-by-step explanation:

219379.01−x/x = 0.3321

−x+219379.01/x = 0.3321

Step 1: Multiply both sides by x.

−x+219379.01≈0.3321x

−x+219379.01 − 0.3321x = 0.3321x−0.3321x (Subtract 0.3321x from both sides)

−1.3321x + 219379.01 = 0

−1.3321x + 219379.01 − 219379.01 = 0 − 219379.01 (Subtract 219379.01 from both sides)

−1.3321x = −219379.01

−1.3321x/−1.3321 = −219379.01/−1.3321

(Divide both sides by -1.3321)

x = 164686.592598

6 0
3 years ago
Read 2 more answers
Jackson mom limits the amout of time he is allowed to play video games . After jackson play for 9 .Inutes , his mom tells him th
vaieri [72.5K]
If we know that 30% of the time is used after 9 minutes we can write this mathematically as:

0.30x = 9
By solving for x we can determine the total time allowed to play games and so:

x =  \frac{9}{0.30}  = 30
The total time allowed to play games is 30 minutes. Since 9 minutes have lapsed 30-9=21 minutes left to play.
5 0
3 years ago
Does anyone know the answer?
Flura [38]
<h3>Answer: 41.19 degrees</h3>

==========================================

Work Shown:

See the diagram below.

tan(angle) = opposite/adjacent

tan(A) = BC/AC

tan(A) = 7/8

A = arctan(7/8)

A = 41.1859252

A = 41.19 degrees

7 0
3 years ago
Plz help!
vlabodo [156]

Answer:

$76.8

Step-by-step explanation:

As, So 20% of 64 will be the markup price.

So 20/100 x 64 = $12.8

Now Markup price = $12.8

And The retail price = markup price + original price = $12.8 + $64 = $76.8

5 0
3 years ago
josue earned $56.25 fixing a coding issue with a popular website.it took him a total of 4.5 hours to fix the issue.The equation
Marina CMI [18]
In your calculator
Divide 56.25 by 4.5










That should equal 12.50
To double check you can
12.50 x 4.5 = 56.25

5 0
3 years ago
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