Answer:
$828
Step-by-step explanation:
15% = 0.15
0.15 x 720 = 108
total cost = $720 + $108 = $828
Answer:
(a) What is the median cost?
12-78
(b) Is there a mode? If so, what is it?
No there isn't
(c) What is the difference between the most expensive and least expensive lamps?
12,75-78
(d) How many lamps cost more than $20 but less than $40?
5
(e) What is the ratio of lamps that cost less than $40 to lamps that cost more than $40? Write the ratio in the simplest form.
{for less} - (12,49) {for more} - (49,78)
Step-by-step explanation:
hope I helped if it's wrong tell me
~Ally
This one is easy all you have to do is subtract the 2.25 by the 15 to get 12.75.
The answer would be A since in that case its a percentage and there can be multiple answers. In the other questions, there is a definitive answer for it.
Hope this helps :)
The standard deviation is the square root of the variance
so if the variance is 256, then the standard deviation is : sqrt 256 = 16 <==
