Step 1
<u>Find the slope of the line</u>
Let

the slope is equal to

substitute



Find the equation of the line
we know that
the equation of the line into slope-intercept form is

where
m is the slope
b is the y-intercept
in this problem we have

------> the y-intercept is the point A
substitute

Step 2
<u>Find the equation of the inequality</u>
we know that
the solution is the shaded area above the dotted line
so
above dotted line---------> represent the symbol (
)
the inequality is

therefore
<u>the answer is</u>

28/8 = (28÷4)/(8÷4) = 7/2;
m^2 / m^3 = (m^2÷m^2)/(m^3÷m^2) = 1/m;
n^4/n^2 = (n^4÷n^2)/(n^2÷n^2) = n^2;
Finally, we obtain 7n^2/2m ;
Answer:
140 minutes
Step-by-step explanation:
60/3 is 20.
20*7 is 140 minutes.
Answer:
17
Step-by-step explanation:
The expression of interest is the difference of the two given expressions.
(-4x +6y) -(-2x -7y) = (9) -(-8)
-2x +13y = 17
The value is 17.
_____
<em>Additional comment</em>
You could go to the trouble to solve the two equations for x and y, then compute the value of the expression you want. As we saw above, that is not necessary.
The first step in problem solving is always "look at the given information and how it relates to what you are asked." A little time spent doing that can save a lot of effort in the actual problem solving process.
So do 21/7 to give you how much they do in a day. The answer is three so they do 3 aceres in a day.