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:
96 + x Less-than-or-equal-to 149
Step-by-step explanation:
no more than 149 people can board so if it was "more" than 149 then it would be incorrect.
Answer:
B
Step-by-step explanation:
Graph it, or just plug in and eliminate A C and D
The 95% confidence interval for the true percent of car owners in this city who received a speeding ticket this year is 44.63% to 49.37%
The formula for calculating the confidence interval is expressed as:
CI = p±z√p(1-p)/n
Given the following parameters
n = 1700
p = 799/1700
p = 0.47
z-score at 95% interval = 1.96
Substitute the given values
CI = 0.47 ±1.96√0.47(1-0.47)/1700
CI =0.47 ±1.96(0.0121)
CI = 0.47±0.0237
CI = 0.47+0.0237, 0.47-0.0237
CI = (0.4463, 0.4937)
Hence the 95% confidence interval for the true percent of car owners in this city who received a speeding ticket this year is 44.63% to 49.37%
Learn more here: brainly.com/question/17042789
Answer:
then talk why are you asking us
