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3 years ago

Y=1/4x+5 y=-xwhat are the x and y values, I think I'm supposed to use substitute

Mathematics

1 answer:

I am Lyosha [343]3 years ago

5 0

Answer:

the answer are x=4y-20

and x represents the independent variable and y represents the dependent variable

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What are the values of m and n in the matrix addition below?

Aleksandr [31]

ANSWER

The correct answer is $m=45,n=12$ .

<u>EXPLANATION</u>

We were given the matrix equation;

$\left[\begin{array}{cc}n-1&6\\-19&m+3\end{array}\right] +\left[\begin{array}{cc}-1&0\\16&-8\end{array}\right] =\left[\begin{array}{cc}10&6\\-3&40\end{array}\right]$ .

We must first simplify the Left Hand Side of the equation by adding corresponding entries.

$\left[\begin{array}{cc}n-1+-1&6+0\\-19+16&m+3-8\end{array}\right]=\left[\begin{array}{cc}10&6\\-3&40\end{array}\right]$ .

That is;

$\left[\begin{array}{cc}n-2&6\\-3&m-5\end{array}\right]=\left[\begin{array}{cc}10&6\\-3&40\end{array}\right]$ .

Since the two matrices are equal, their corresponding entries are also equal. we equate corresponding entries and solve for m and n.

This implies that;

$n-2=10$

We got this equation from row one-column one entry of both matrices.

$n=12$

Also, the row three-column three entries of both matrices will give us the equation;

$m-5=40$

$m=45$

Hence the correct answer is $m=45,n=12$ .

The correct option is option 2

6 0

2 years ago

A car travels 360 miles in a period of 180 minutes. Find the average velocity of the car in miles per hour over this time period

Serggg [28]

The simple formula for velocity is v=d/t. Velocity equals distance divided by time. 360 miles divided by 180 minutes. 360/180=2. The car travels at 2 miles per MINUTE.

Now, to change to miles per HOUR. There are 60 minutes in an hour, so 2*60=120 miles per hour.

Answer: 120 mph

4 0

3 years ago

Read 2 more answers

Janice is considering two restaurants for a party. The first restaurant charges $15 per person plus a flat rate of $175 to reser

yan [13]

Answer:

The answer is 15x + 175 = 9x + 329.

Step-by-step explanation:

Hope this helps!

6 0

2 years ago

Help me out :)) 2(5x-1)+3x !! simplify !!