Answer:
18 minutes
Step-by-step explanation:
60/40=1.5
12 x 1.5 = 18
The answer is $820.
I found this by 0.8x = 656
(Remember, a 20% discount means that it costs 80%, or 0.8, of the original price)
Then, divide 0.8 on both sides:
0.8x/0.8 = 656/0.8
This leaves you with:
x = 820
Answer:
Percent error = 15.79%
Step-by-step explanation:
Given the following data;
Experimental value = 12cm
Actual value = 14.25cm
To find the percentage error;
Percent error can be defined as a measure of the extent to which an experimental value differs from the theoretical value.
Mathematically, it is given by this expression;
Substituting into the equation, we have;
Percent error = 15.79%
Va = 3.14 x 12^2 x 6/3 = 904.32
Vb = 3.14 x 6^2 x 24/3 = 904.32
so VA = VB