Answer:
ABCDEFG NM,
Step-by-step explanation:
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:
(1, 0)
Step-by-step explanation:
I can't really explain it on here with it making sense but just plug in the numbers into the formula and it should be easy from there
Substitute 4x for y and you get
3x+5(4x)=23
3x+20x=23
23x=23
x=1
y=4(1)
y=4
