Answer:
40
Step-by-step explanation:
11x6=60
60-5x4= 20
=40
Ok, so the starting numbers are the fixed amounts. If we think of a graph, this is the y-intercept/ starting point and the rate would continue from there. This conclusion is very important to writing a linear equation in slope-intercept form.
If you don’t remember, slope-intercept form is y=mx+b, where m is the slope and b is the y-intercept.
First, let’s make our equations.....
Plan A: y = 0.07x + 26
Plan B: y = 0.12x + 17
Now since it is not stated, I’m not sure if you need to find where the cost of both plans is equal, but that would be found by setting up a system of equations and using substitution.
y = 0.07x + 26
y = 0.12x + 17
Substitute one equation into the other...
0.07x + 26 = 0.12x + 17
- 0.05x = -9
0.05x = 9
x = 180
And there you have it! After 180 minutes [3 hours] of talking, both phone plans will have the same cost.
For problem 17 it's like a mirror, try to reflect it the same units carefully far apart from zero 0,0 with the x so it will be down from the original triangle, for A(1,6) it's 6 units up so u do the opposite having A be (1,-6), B(7,5) to B(7, -5), and finally C(6,8) to C(6,-8).
Answer:
The solution set is {x : x ∈ R, x < -7} ⇒ A
Step-by-step explanation:
- The solution set of the inequality x > a is {x : x ∈ R, x > a}
- The solution set of the inequality x < a is {x : x ∈ R, x < a}
- The solution set of the inequality x ≥ a is {x : x ∈ R, x ≥ a}
- The solution set of the inequality x ≤ a is {x : x ∈ R, x ≤ a}
Let us solve the question
∵ x + 2 < -5
→ Subtract 2 from both sides of the inequality
∴ x + 2 - 2 < -5 - 2
∴ x + 0 < -7
∴ x < -7
→ By using the second rule above
∴ The solution set is {x : x ∈ R, x < -7}
Answer:
the ablity to choose one is the right now
Step-by-step explanation:
