Answer:
$1080
Data given:
selling price (SP): $1209.60
percentage profit: 12%
To calculate out percentage profit
profit% = gain/cost price × 100
gain = selling price - cost price
hence we have:
(1209.60 - cost price)/cost price ×100 = 12
when we cross multiply
we have 12costprice = (1209.60×100)-(100×cost price)
12CP=120960-100CP
collect like terms
12CP+100CP = 120960
112CP=120960
divide both sides by the coefficient of CP
CP = $1080
Answer:
An 99% confidence interval of the given proportion
(0.355 , 0.385)
Step-by-step explanation:
Given sample size n= 900
the number of successes in the sample is x=333
The proportion P =
Q = 1-P =1 - 0.37 = 0.63
<u>Confidence interval</u>:-
99% of confidence interval zα = 2.93
(0.37 - 0.015 , 0.37 + 0.015)
(0.355 , 0.385)
<u>Conclusion</u>:-
<u>An 99% Confidence interval (0.355 , 0.385)</u>
Answer:
18 million kilometers in one min. and 0.3 million kilometers in one second
Step-by-step explanation:
so the one min. is easy because all you have to do is take 180 and divide it by 10 and you get 18 million kilometers in one min. and then you would take 18 and divide it by 60 and you would get 0.3 million kilometers in one second