Answer:
Option C is correct.
Step-by-step explanation:
Let x be the distance cover by Michelle
Given:
A circle diameter is 3 miles.
And Michelle biked around the trail 4 times.
We know that
The circumference of a circle.
circumference = 
----------(1)
where 
miles
Put 
and r value in equation 1.
The circumference of a circle is 9.42 miles.
And Michelle biked 4 times, that is equal to 4 
circumference.
.
That is equal to 38 miles.
Therefore, Michelle biked around 4 trail is 38 miles.
we know that
Using the original score as the basis
If Misha increased her test score from 
% to 
%
then
the increase variation is equal to
%-%=
%
to find the approximate percent increase of Misha's test score we apply a rule of three
if %--------------> represents 
%
%----------------->x
%
therefore
the answer is
the approximate percent increase of Misha's test score is 
%
Answer:
200
Step-by-step explanation:
12% is equal to 12/100
I would set up something like
12/100= 24/x
to get from 12 to 24, you have to multiply by 2.
do the same for 100 so 100 x 2= 200
Answer:
5/8
Step-by-step explanation:
Find P(x = 3 blues for the 2 draws)
two draws
Binomial probability.
we know p = 3/8 for blue, else q = 1 - q = 1 - (3/8)
X = # of blue marbles left in the bag.
apparently it looks like there are 8 marbles in the bag, 3 are blue, 5 are red
X = 3 , means the draw was a red 5/8 for the first draw
the 2nd draw can be a blue or a red so, probability is 1
P(X = 3) = (5/8) * 1 = 5/8
