It’s the second answer
<1=58 <2=122 <3=58
<span>constant sum = 4 + 5 = 9</span>
We can write two equations for this. x = each minute of calls
Plan A = .1x + 16
Plan B = .14x
Make the two equations equal each other, so we can find when they are the same.
.1x + 16 = .14x
Subtract .1x from both sides
16 = 0.04x
Divide by 0.04 to get x by itself
400 = x.
Earlier, we set x as each minute of calls. This means that after 400 calls, Plan A and Plan B will cost the same.
To find the cost, substitute 400 into both equations by themselves.
Plan A cost = .1x + 16
Plan A cost = .1(400) + 16
Plan A cost = 40 + 16
Plan A cost = $56
Plan B cost = .14x
Plan B cost = .14(400)
Plan B cost = $56
Final answer: After 400 calls, Plan A and Plan B will both cost $56.
Answer:
x = -12/5
Step-by-step explanation:
hope this helps you
Answer:
A is about 37.6 degrees
B is about 38.4 degrees
a is about 15.7 units
Step-by-step explanation:
Using the law of sines, you know that:
Since all of the angles of a triangle add up to 180 degrees, angle A must be 180-104-38.4=37.6 degrees.
Finally, for side a:
Hope this helps!
