1 hour is 15m
2 hour is 30m
3 hour is 65m
4 hour is 80m
The formula of a slope:
We have the points (look at the picture) (0, 1) and (-2, -2). Substitute:
Answer:
The system of equations is
Step-by-step explanation:
Let
x ----> the number of minutes of calling time
y ----> the monthly cost of the calling plan
we know that
The linear equation in slope intercept form is equal to
where
m is the slope
b is the y-intercept
In this problem
Plan A
substitute
----> equation A
Plan B
substitute
----> equation B
therefore
The system of equations is
<em>You've simplified it as much as possible.</em>
<em>Let x equal length of flight in hours.</em>
<em>At first, the inequality was:</em>
<em>x ≈ 5</em>
<em>But with the delay, the inequality is now</em>
<em>x ≥ 6.</em>
Answer:
P = 14.4
Step-by-step explanation:
Multiply out -3.1(6) and -2.1(2).
P - 18.6 = - 4.2
Add - 18.6 to the other side of the Equation.
P = 14.4