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hodyreva [135]
3 years ago
6

Find the value of x. 1/2 - 15 = 2/5x - 7​

Mathematics
2 answers:
denis23 [38]3 years ago
7 0

Answer:

(Hope this helps can I pls have brainlist (crown)

Step-by-step explanation:

In pic

<em>(Credit: Symbolab )</em>

<em></em>

<em>x = 80</em>

<em></em>

<em></em>

Dmitrij [34]3 years ago
6 0

Answer:

the answer is 80

Step-by-step explanation:

hope this helps

can i get braineist pls

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What is the value of x?<br>A. 20<br>B. 24<br>C. 25<br>D. 30<br>E. 40​
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in the next step an arc is drawn from point f which intersects the arc through f in point g. What statement is true for this ste
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Answer:

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Step-by-step explanation:

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3 years ago
a carpenter lays 16 squares feet of tiles in 1.5 of an hour.how many squares feet of tiles does the carpenter lay per hour?
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6 0
3 years ago
Solve the equation:<br> [3 2<br> 5 5]<br><br> [x1<br> x2]+<br> [1<br> 2]=<br> [2<br> -3]
dsp73

9514 1404 393

Answer:

  (x1, x2) = (3, -4)

Step-by-step explanation:

As with any 2-step linear equation, subtract the constant, then multiply by the inverse of the coefficient of the variable.

  \left[\begin{array}{cc}3&2\\5&5\end{array}\right]\left[\begin{array}{c}x\\y\end{array}\right]+\left[\begin{array}{c}1\\2\end{array}\right]=\left[\begin{array}{c}2\\-3\end{array}\right]\\\\\left[\begin{array}{cc}3&2\\5&5\end{array}\right]\left[\begin{array}{c}x\\y\end{array}\right]=\left[\begin{array}{c}1\\-5\end{array}\right]\\\\\left[\begin{array}{c}x\\y\end{array}\right]=\dfrac{1}{5}\left[\begin{array}{cc}5&-2\\-5&3\end{array}\right]\left[\begin{array}{c}1\\-5\end{array}\right]

Performing the multiplication of the matrix by the vector gives the solution.

  x = ((5)(1) +(-2)(-5))/5 = 15/5 = 3

  y = ((-5)(1) +(3)(-5))/5 = -20/5 = -4

Using your variables, x1, x2, the solution is ...

  (x1, x2) = (3, -4)

7 0
2 years ago
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