Could you possibly add to this post what your goal is? Are you supposed to graph this inequality?
19-x≥21 can be solved for x. Please do that now. If you have the skill and the interest, please graph your solution.
Answer:
its 11 and 31
Step-by-step explanation:
got it right on test
Answer:
Around $790
Step-by-step explanation:
You divide by 31 and multiply by 7
Answer:
Step-by-step explanation:
let x represent the number of minutes of call made.
Let y represent the cost for x minutes of call.
If we plot y on the vertical axis and x on the horizontal axis, a straight line would be formed. The slope of the straight line would be
Slope, m = (10.86 - 5.91)/(10 - 5)
m = 4.95/5 = 0.99
The equation of the straight line can be represented in the slope-intercept form, y = mx + c
Where
c = intercept
m = slope
To determine the intercept, we would substitute x = 10, y = 10.86 and m = 0.99 into y = mx + c. It becomes
10.86 = 0.99 × 10 + c = 9.9 + c
c = 10.86 - 9.9
c = 0.96
The linear function becomes
y = 0.99x + 0.96
Therefore, for $12, the number of minutes would be
12 = 0.99x + 0.96
0.99x = 12 - 0.96
0.99x = 11.04
x = 11.04/0.99
x = 11.15 minutes
Answer: The slope is 
Step-by-step explanation:
The slope of a line can be calculated with the following formula:
Observe the graph provided in the exercise.
You can notice that these two points are on the line:
and 
Then you can identify that:
Knowing these coordinates, you can substitute values into the formula for calculate the slope.
Then, you get that the slope of the graph is:
