M = 135/19 and n = -5/19

You have to give them like terms so that when you eliminate they cancel out and you can solve. The easiest way to do so is by multiplying the top equation by -4 and the bottom by 3.

4 0

3 years ago

Andy estimated that he would need 75 feet of lumber for a tree house project. he later found that the actual amount of lumber ne

Kipish [7]

Step 1
Calculate the error
error=75-64-----> 11 ft

step 2
Divide the error by the exact value
11/64=0.1719

step 3
Convert that to a percentage
0.1719*100=17.19%

the answer is
17.19%

8 0

3 years ago

What is the slope of a line that is perpendicular to the line represented by the equation 2x−5=−y?

Liula [17]

Answer:

$\frac{1}{2}$

Step-by-step explanation:

First, you need to get the equation into y = mx + b form, like this:

Add y to both sides to get y + 2x − 5= 0

Then subtract 2x to get y - 5 = -2x

Add 5 to get y = -2x + 5

Now we know the slope is -2, or -2/1.

A line that is perpendicular to it has a slope that is the first line's slope's opposite reciprocal. This means flip the fraction upside down and change the sign, which gives you positive 1/2.

3 0

3 years ago