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sladkih [1.3K]
3 years ago
10

Solve using matrices. 6x + 4y = 12 3x + 2y = 6

Mathematics
2 answers:
cricket20 [7]3 years ago
6 0

Answer:

no solution

Step-by-step explanation:

  1. see what you can cross out first.
  2. i am going to cross out y's first.
  3. I only multiplied the 2nd equation with negative 2.
  4. when you do that; you get a -6x-4y=-12.
  5. This means there is no solution because everything crossed out.
Fiesta28 [93]3 years ago
3 0

Answer:

( x, 3 - 3x/2 )

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A person invests 10000 dollars in a bank. The bank pays 4.75% interest compounded semi-annually. To the nearest tenth of a year,
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3 years ago
A school purchases calculators from a store for six dollars each. Create an equation that represents the total cost, use d for d
Monica [59]

Hello there! to answer your question it is 6c x 6d= 36d

explanation: you would have to multiply all the calculators by 6 so 6c x 6d = 36d easy math i had the same one plz give brainlist

3 0
3 years ago
Read 2 more answers
The mean cost of a 5 pound bag of shrimp is $50 with the standard deviation of six dollars. If a sample of 40 bags of shrimp is
Lemur [1.5K]

SOLUTION

We will use the formula

\begin{gathered} Z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}} \\ where\text{ } \\ x=51.3,\mu=50,\sigma=6,n=40 \end{gathered}

Applying we have

\begin{gathered} Z=\frac{51.3-50}{\frac{6}{\sqrt{40}}} \\ Z=\frac{1.3}{\frac{6}{\sqrt{40}}} \\ Z=1.37032 \end{gathered}

Now using a Zscore calculator for 1.370320, we have

P(xHence the answer is 0.9147

6 0
1 year ago
Y equals 8<br> X equals 575<br><br> Solve for slope intercept <br><br> y equals mx + b
zhannawk [14.2K]

y = 8

x = 575

We want to solve for b in the slope-intercept form y = mx + b.

To complete this problem, we need the value of m, the slope. If you know m, then just plug into y = mx + b this way:

8 = 575m + b

3 0
3 years ago
the sides of a triangle are in the ratio 3:4:5 what is the length of each side if the perimeter of the triangle is 90cm
avanturin [10]
P of triangle = a + b = c = 90

<span>ratio 3:4:5
so a = 3x, b = 4x , c = 5x

3x + 4x + 5x = 90
12x = 90
x = 90/12 = 7.5

a = 3x = 3 * 7.5 = 22.5
b = 4x = 4 * 7.5 = 30
c = 5x = 5 * 7.5 = 37.5

Answer:
1st side = 22.5
2nd side = 30
3rd side = 37.5

Double check: 22.5 + 30 + 37.5 = 90 (perimeter)</span>
6 0
3 years ago
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